Business security surveillance & privacy voip

Why are the Major Telcos Afraid of encrypted voip?

A significant disconnect exists between the reality of today’s IP communications and the security concerns and needs of the customer (read encrypted voip). welcomes VoIP Week guest contributor Peter Cox, UM Labs Ltd. Founder and CEO.

One of UM Labs’ long-standing customers is using our product to provide encrypted VoIP connections from remote users (mostly home workers) and to encrypt calls they make and receive on their SIP trunk. Their motivation is simple: They are in the USA and their business makes it necessary for them to work closely with federal government, a connection that subjects them to security and compliance requirements. This customer’s view is that applying encryption to all VoIP calls — including those made and received on their SIP trunk — is an essential step towards meeting these requirements. Even if some SIP trunk calls are then relayed in clear text, as is the case for PSTN calls, the encryption applied on the connection to their trunk provider protects their network and ensures the confidentiality of SIP trunk calls on the connection between the service provider and their office. This effort demonstrates that they are taking all reasonable steps to secure the network connections under their own control and is thus a significant step towards meeting the compliance requirements.

Recently, our customer’s existing service provider announced that they were considering discontinuing encrypted SIP trunk connections, and being unable to find an alternative they asked me for some alternative service provider recommendations. I posted the question to the SIP Trunking & Enterprise VoIP LinkedIn group and received a number of helpful replies. My question also sparked some interesting discussion. A number of the participants gave spurious reasons why encryption was too difficult or not needed on a SIP trunk. What surprised me most was that representatives of two very large and well known telcos weighed in against encryption. One claimed that providing an encrypted SIP trunk connection was incompatible with legal intercept requirements, while the other tried to claim that since enterprises trust their data on “private” networks shouldn’t they trust their voice as well?

Addressing the claim that SIP trunk connections are not compatible with legal intercept requirements, I submit that when properly implemented and with the appropriate systems encrypted VoIP does not prevent legal intercept or call recording for compliance purposes. What it does stop is unauthorised call monitoring. The risk of unauthorised call monitoring is not confined to VoIP, as there is a significant risk to calls on cellular networks (see my recent blog at Encryption also has a role to play in controlling other threats, including call fraud.

Regarding the comment about enterprises trusting their data on private network connections to service providers, this I found even more surprising. I have spent many years in network security and this is the first time I have heard a connection to a 3rd party service provider classified as sufficiently private to trust for data transmission without some form or additional security. While connection to service providers may be more controlled than the open Internet, they are not private. Most enterprises will naturally want to protect their data with a VPN, so it makes sense to do the same for voice.

Part of the problem is that part of the telecoms industry is stuck in the past, back in the days when the phone companies owned and operated the networks. Things have moved on, and a significant proportion of all communications now runs on IP networks, much of it on the Internet. The move to IP has spawned new applications such as presence and IM and is the driving force behind convergence. The use of IP networks, and specifically the Internet for voice and UC, is a big step forward, but we must recognise that a different set of security rules apply. We have the knowledge and technology to address the security issues. Rather than finding reasons to avoid implementing VoIP and UC security technologies, the industry needs to embrace them and promote their implementation.

I won’t name the two telcos, but if you are interested in seeing them incriminate themselves you can follow the full LinkedIn discussion at

This is a VoIP week post on Check out other VoIP themed posts this week:

Why are major telcos afraid of encrypted VoIP? by Peter Cox
Emergency calls and VoIP by Peter Farmer
VoIP, the Bible and own brand chips by Simon Woodhead
Why the desktop VoIP telephone isn’t going away by Jeff Rodman
Small business VoIP setup by Trefor Davies
VoIP fraud-technological-conventionality-achieved  by Colin Duffy

broadband Business H/W UC voip voip hardware

Why the Desktop VoIP Telephone isn’t Going Away

Major leaps in technology allow business phones — the desktop VoIP telephone — to serve a rapidly growing range of needs. welcomes “VoIP Week” contributor Jeff Rodman, Polycom‘s Chief Technology Evangelist. Since co-founding the company in 1990 Jeff has been instrumental in the realization of Polycom’s iconic products for voice, video, network communications, and other media.

The death of the desktop telephone has been predicted for decades. Technology has steadily advanced, business processes and communications needs have grown, and it’s actually rather surprising how that stodgy old friend the “desktop phone” has prospered. Look at its challenges: the PalmPilot, mobile phones and the Blackberry first, then on to Skype and other soft clients, unified information systems, mobile iOS, Windows and Android devices, teleworking, personal video calling, open-air workspaces, multiple Unified Communications and Control (UC&C) platforms, and the internet itself. And, of course, an always-growing need for specialised applications and consistent, efficient globalisation.

The desktop device remains firmly in place, though. What has actually happened is something that many didn’t see coming, yet is obvious in hindsight. The question was never really about when the desktop telephone would disappear, but rather how changing work needs and new technologies would shape its evolution.

“Personal transportation” did not disappear when Karl Benz introduced the Motorwagen in 1885, it evolved as technology moved beyond the horse. A broad range of personal transportation solutions emerged, from the motorbike to the motorhome, addressing such specific needs as the sedan, snowmobile, and all-terrain vehicle along the way. Similarly, the phone (which we might describe as a personal desktop live communications device) is not vanishing. It is, rather, becoming even more critical to business success, as it has advanced from its roots. Once merely the “black phone on a desk,” there is now a range of devices to cover an assortment of user needs from a basic desktop VOIP telephone to the rich integration of essential capabilities known as the Business Media Phone.

What is a phone today?

Modern business phones exist in many forms, but the most basic requirements they all share are durability and reliability. They are always on and ready for use, unlike cell phones, which require charged batteries and wireless connectivity. Similarly, soft clients or UC clients running on PCs must be running to accept calls or place calls. A phone is one thing we expect to always work, which is why they have traditionally been built like “brick houses,” never knowing who might slam down the handset, douse them with tea or drop them off of a tall table. Any phone is designed for a tightly defined set of uses, which it flawlessly performs. Whether a particular phone today supports only voice or a full bouquet of functions and applications, it is expected to do those jobs with unblinking confidence. As we will see, any device that might hope to take its place must be measured against this simple but essential standard of absolute reliability and responsiveness, one which we might call the “phone’s prime directive.”

Beyond this, major leaps in technology allow business phones to serve a rapidly growing range of needs. The adaptations to serve these can be broadly categorised in three directions— extensibility, unification, and media. Manageability and reliability, looking at the centralized support model removes the hassles from the end-user who can simply use it and doesn’t have to worry about software updates or configurations.


Whether PSTN, SIP, or some proprietary network, the most basic analogue phone needs only a handset and a phone cable. The underlying vision usually supports a much larger assortment of abilities, though, and different models within the same family will express different combinations. These can take the form of additional interfaces to support Bluetooth, wired, and DECT headsets, memory stick hosting to preserve conference audio, additional Ethernet jacks, “sidecar” accessories to provide one-touch selection of additional lines, and even add-on interactive HD video. Each of these extends the usefulness of a phone, by enabling future enhancement without burdening the initial purchase. The extent to which a phone can support this kind of evolution is one measure of its suitability for an organisation.


Although the range of abilities, environments, and platforms that might be supported by contemporary phones is much broader than it was just a few years ago, the user still expects them to work together simply and reliably. This means that functions must tie together transparently, and any complexity has to be neatly and efficiently concealed. The functions performed by the desktop phone must be able to connect to a wider set of networks; but more than that, the user’s experience has to remain consistent—a user cannot be confronted with wildly different behaviour just because, for example, SIP dialling and the Microsoft Lync platform are both in use within the organisation. For this reason, one essential requirement of a properly-implemented phone is that it retains compatibility with existing infrastructure. This means that interoperability among different UC and UC&C host platforms and simple, predictable behaviour is essential for a successful phone, whether it is a basic voice phone with enterprise directory access, or a full-fledged Business Media Phone, such as the Polycom range of VVX Business Media Phones.


Today, conversations can take place among almost any combination of styles and environments (i.e., HD or narrowband voice, accompanying charts and presentations, HD video, small-screen video from a handheld device, or even Immersive Telepresence rooms). They can be between two people in only two places, or among a gathering of groups and individuals everywhere (i.e., at airports, desks, homes, workspaces and conference rooms).

Although there is today a growing expectation that participants will join meetings with video, a phone must give its user a clear perception of the meeting and also present its user as a competent, efficient participant in that meeting, whether the user has joined with video or only audio. This means that whether sitting in open spaces or quiet offices, phones must reject surrounding noise while allowing their users to speak clearly. Further, if video capable, they must send a clear, high-fidelity image even if their display is compact. Just as a user does not want to sound like they’re on a muffled Smartphone, they also want to look as if they’re working from a professional HD video system, not shaking and blurry with a precariously- mounted camera.


The desk phone has changed and today it does enormously more than it did in the past, yet it remains a keystone of effective business operation. By providing consistency, reliability, comfort, and an easily managed connection, there are few tools in business that prove their continuing worth as well, or as quickly, as well-built table-top voice or Business Media Phones.

Over the past three years, the tables have turned. Savings that some organisations had expected to gain by leveraging employee BYOD’s have evaporated as enterprises are often now the ones who buy those smartphones for employees, often at considerably higher life-cycle cost than a well-built desk phone. This is one reason that we’re really not entering a “smartphone world,” and why the market for real desktop phones of all descriptions continues to grow. Organisations that experiment with smartphones discover that they’re no panacea, and they return to the purpose-built and IT-friendly desktop phone — and especially to its powerful newer sibling the Business Media Phone — as the tool for doing what they do best, communications without compromise…

The bottom line is that regardless of what the final decision for each employee turns out to be, the first step toward making correct choices is to carefully investigate, taking care to understand what is important to the organisation and to each user, and get the facts about the options available when making a long-term investment such as a phone system.

This is a VoIP week post on Check out other VoIP themed posts this week:

Why are major telcos afraid of encrypted VoIP? by Peter Cox
Emergency calls and VoIP by Peter Farmer
VoIP, the Bible and own brand chips by Simon Woodhead
Why the desktop VoIP telephone isn’t going away by Jeff Rodman
Small business VoIP setup by Trefor Davies
VoIP fraud-technological-conventionality-achieved  by Colin Duffy

Business UC voip

SIP trunks Ferraris and motorbikes

FerrariI’m at Convergence Summit North. I have to say I think I prefer it to Convergence Summit South for what it’s worth. It’s in Manchester and I’ve also decided I like Manchester, again for what it’s worth. Travel and tourism piece over:)

I tend to think long and hard about whether to visit a trade show these days. In our industry the stands all tend to have the same products and the same pitch. It’s difficult to make yourself stand out from the crowd.

Tref sat in FerrariThe good thing about this one in Manchester is that it is small enough to be intimate and friendly and because I’ve been in the business a while it’s full of people I know. It is therefore a good place to find stuff out, if I can put it like that.

At this show the organisers, Comms Business magazine, had invested in an audience reaction system. Questions were put up on the screen and you pressed the relevant button on your “clicker” to submit your answer and the aggregated answers for the whole audience were displayed.

We had a bit of fun with this but one specific question stood out for me. That was “Is your company recruiting right now?” 29% of the audience said no they weren’t but a staggering 65% said they were recruiting and a further 5% said they had plans to1. That’s 70% of business in the communications market taking on new staff.

Ferrari engineThat has to be a good thing. Where is the recession we keep hearing about? It is an extremely tough market out there  but in the technology game there is always opportunity because technology is always changing.

On the technology front you will be interested to hear that only 10% of the audience (of IT and voice reseller types) had deployed Microsoft Lync with voice although a larger 29% had deployed Lync without voice. It’s very difficult to see how well Microsoft are doing in the voice game because all their Enterprise licenses are shipped with Lync so they always quote a very high number of deployments. It’s relevant because the theory goes that Microsoft is after the PBX market and their model doesn’t involve much if any revenue for traditional PBX resellers.

We also heard that although the market for hosted VoIP slowed down last year the SIP trunk sector continues to shoot up with a 25% growth in the second half of 2012. Over half the audience were selling SIP trunks and half said they were selling more SIP than ISDN which I believe may well be the case at Timico now. Those that don’t sell SIP need to take a hard look in the mirror. There is going to come a time where ISDN isn’t around.

tref sat on motorbikeNote in bandying these acronyms around I’m assuming that you know what I’m talking about. I’m not about to give a tutorial on what they all mean.

The inset photos are all of me playing with the different attractions that companies were using to get people to their stands. I have to say I don’t think I’ll be buying a Ferrari anyday soon. There is no room in them and the seat won’t go down low enough for me to be able to see out properly. I wouldn’t mind a motorbike. I like the image. I’m obviously a natural – look no hands. Unfortunately I think they’re far too dangerous:)

As a little footnote I was there with our wholesale subsidiary NewNet who are a great bunch of guys and I think picked up some nice leads from the show.

I’m doing two round tables on 4G at 12.30 and 1.30 if anyone wants to come along.

1 OK I know it doesn’t add up to 100% but don’t nitpick.

Business spam

Does this person come from the double glazing industry?

Enterprise Management 360 along with Gartner and IDC will be distributing a comprehensive research on Building bridges with real-time Optimized Data Center Infrastructure Management with key content from Emerson, a leading infrastructure Management Industry

You have been selected out of 100 executives you will also have a No Obligation opportunity to speak with an industry expert to discuss any questions or possible solutions that can help your organisation to maximise your Infrastructure Management.

Please do email me if you have any questions.

Like most of you I get more than my fair share of “legitimate” junk email. I occasionally spend a few minutes unsubscribing from lists but I know it is a futile task. My name is out there. I am a marked man.

It is usually easy to spot true spam should it make it past the trap. This one however is one of the legitimate junk mails that looks like genuine spam.

The text has been lifted verbatim including grammatical errors. How can a business hope to win customers if this is how it speaks to prospects. No name – just Hello. No Obligation opportunity to speak with an industry expert! No unsubscribe link. I wonder how they chose my name out of the 100 executives. Must have been a chance in a million hundred.

I allude to the double glazing industry in the title but I suspect I am being most unfair to the hard working folk in that market sector. I don’t even know why I bothered to write this post but it tickled my fancy and it has given me a break from writing some really interesting stuff on SIP trunks. I have remove the links to protect the innocent.

PS for a No Obligation opportunity to talk about SIP trunks go to the Timico business website – there is a chat line there. Tell em I sent ya 🙂

Business security voip

How to make your VoIP secure #fraud

VoIP securityIt’s a pretty simple process to set up your own VoIP phone system. Google “free VoIP server” and you will find links to 3CX or Asterisk. Download their free software and install it on a computer in your office. Sign up for a few SIP trunks from an Internet Telephony Service Provider (eg Timico) and you can be up and running making VoIP phone calls from your Local Area Network in an afternoon. You don’t even need to buy phones. You can download free soft phones that will run on a PC or a smart phone that will work perfectly well over WiFi. The cost is minimal. It’s as simple as that.

Except it isn’t. Now google “VoIP fraud” and

Engineer voip

What’s in a bowl of fruit – IPCortex RaspberryPi

bowl of fruit - click to see IPCortex RaspberryPiIt never ceases to amaze me what we can do with technology. The most generous Rob Pickering of IPCortex sent me a RaspberryPi microcomputer loaded with a cut down version of his PBX.

It was the work of minutes to set up a couple of Lincoln area code (01522) SIP trunks and then define some client devices with which to make phone calls. I then downloaded the 3CX SIP client for Android, free from the Google Play Store, stuck in some simple credentials (user name tref etc) and I was away.

The IPCortex bearing RaspberryPi is ipcortex on raspberrypi screenshot currently plugged in to an Ethernet port in our kitchen. Click on the photo to zoom in. I don’t think my wife has noticed yet but no doubt she will. At that point I will move it to the switch in the attic and leave it there for a general play.

The IPCortex lets me configure any SIPipcortex on raspberrypi - click to enlarge client for the RaspberryPi. In this case a softphone was used and we needed to generate some dummy mac addresses – shown in the photo as 0000001 etc. Ordinarily you would input the MAC address of your deskphone.

In one of the images you can see that there are three users set up – Tref, Joe and John. You might need to click on each image to enlarge for a better view.  I took these screenshots lying in bed this morning. It’s just great what you can do from your phone. You can see the internal IP address of the IPCortex/server plus a glimpse at some of the features.

The 3CX is great for a play but I haven’t3CX SIP softclient running on Samsung Galxy S3 and hanging off the IPCortex on RaspberryPi figured out its ideal set up yet. It currently assumes it is the main phone you want to use when dialing out but I have a number of clients I play with on my handset and I don’t want it to be the main one. I have to switch the 3CX off for normal operation of other phones. It might just be a question of me needing to play with the Galaxy S3 more.

The call quality was great. I made WiFi to PSTN, PSTN to WiFi and WiFi to 3G.

I can see possibilities for home workers and consumers with this technology. You could envisage giving the kids an extension hanging off a local number – press 1 to talk to John etc or they could have their own DDI.

The time is not far off where people manage their own call routing – for example forwarding to their own mobile when not at home. If their package includes free calls to mobiles, or just to family mobiles then this would be a no brainer. This functionality could easily be embedded in a set top box along with a media server, which coincidentally (not) is what me next RaspberryPi project is going to be.

That’s all for now. I’ll report back as I get more to say on this subject.


PS no comments about the untidy cable. I couldn’t find a shorter one and my wife will have enough to say anyway when I get home.

PPS Thanks to Rik Wheeler for helping with the setup and being at the other end for the 3G demo calls.

Business video voip voip hardware

I have seen the light, opened the door and been let in by ProTalk

Protalk SIP based door entry systemI love it when our engineers come up to me and say “want to see something interesting?”. Today one of our top VoIP engineers showed me the ProTalk IP (SIP) antivandal door entry unit.  This is a rock solid door entry system controlled by SIP video phone.

Pressing the button initiates a sip call to the number / call group of your choice, sets up a video call upon being answeredProTalk SIP door entry system from ProVu and allows the operator to open the door remotely by keying in a prearranged number.  The system will in theory work with any SIP video phone – we have tested it with the SNOM 8xx series and a number of soft clients.

It should even work on mobile SIP clients – any SIP phone that can generate a DTMF tone. At Timico it is being tested as part of the security for the new data centre but it is easy to imagine it being used in many application areas.

I could even envisage using it at home – kids forget their key and you not in the house? They push the button and you answer on your smart phone and let them in.

ProTalk is a product of ProVu communications in Huddersfield.  They are good lads and worth taking a look at.

Isn’t technology marvelous!

Business voip

#VoIP SNOM #SIP and the Football #WorldCup

When I first started looking at SNOM phones, perhaps 9 years ago, they were not very impressive. The handset was easy to knock off its cradle and the voice was tinny.

The phone firmware was impressive and the fact that SNOM was a very early runner in the SIP market is to their great credit.  SNOM is an entrepreneurial business.

The fact that SNOM is still around is also hugely to their credit and their handsets have come on in dramatic leaps and bounds. The quality of the plastics has improved and their expertise in software still comes clearly to the fore.

Business internet mobile connectivity voip

What are ISPs doing about Voice?

The question is being asked “what are ISPs doing about voice?” This is particularly relevant as the market consolidates and B2B ISPs not only seek economies of scale but additional sources of revenues.

Timico was founded as a fully converged ISP from the outset. Early on we had to decide whether to simply white label services from other ISPs and ITSPs or do “get into manufacturing” and do it all ourselves.

At the outset there were no real white label VoIP options. You had to do it yourself. However there were plenty of ISPs providing Virtual ISP services.

Business voip

Job vacancy for VoIP network operations engineer – please retweet

I’m looking for a VoIP network engineer to join our expanding VoIP team.  The job entails assisting with the running of our Nortel A2E SIP platform, the development of new services, interoperability testing with vendors and other service providers, 3rd line support and, I’m sure, a plethora of other interesting and challenging tasks as we think of them.

VoIP is an important string to the communications bow these days. Timico is a VoIP operator rather than a White Label service provider reselling soneone else’s proposition. We probably don’t lead with VoIP in a large percentage of deals but the ability to provide VoIP services is becoming an important part of winning corporate Wide Area Network business.

For example it is fairly typical for a company to outsource the management of a few hundred sites’ connectivity to us.  They will then take advantage of the fact that  they now have an MPLS network and run VoIP between sites and to all their homeworkers.

If you want to join a company that is going placesdrop me a line with your CV or take a look at the Timico website.

PS it is always a risk posting a job ad on the blog – I get inundated with calls and emails from recruitment organisations! It is the cheapest way to advertise though.  Please retweet 🙂

Engineer internet voip

IETF 74 and SIP

10 years ago this month saw the publication of RFC2543 which was the first proposed version of the SIP standard that is now used an almost all internet telephony services.

This is being celebrated this week at IETF74.  The Internet Engineerng Task Force is the body that maintains standards  for internet related technologies.

SIP was initially championed by a small number of people that included it’s inventor Henning Schulzrinne, Jonathan Rosenberg, Jiri Kuthan, Henry Sinnreich et al.

At around that time I was being asked by my then employer Mitel to set up a product line that was based on open standards.  There was quite a choice to chose from.

MGCP was adopted by the cable community in the USA and by a number of ITSPs.  However the problem with MGCP was that it had a relatively small feature set which meant that service providers had to develop their own extensions to provide saleable services.  Thie meant that MGCP quickly became non standard as any venbdor would have to support multiple flavours of the protocol.

Then there was SGCP, or skinny. This was a Cisco proprietary protocol.  Whilst potentially this had initially the largest market opportunity it did tie you into Cisco.

So SIP was the obvious one but it took a long time for the market to appear, particularly as the turmoil around 9/11 hit the dot com intustry.

I spent 4 years service on the board of the SIP Forum from around this time.  Being around during the early days of a technological revolution was exciting and I am fortunate enough, with Timico, to be able to continue the ride.

Check out the Facebook event surrounding this anniversay here.

End User voip

Standardisation Brings Choice

Most of the Timico staff who have been subjected to my technology staff intro presentation, which is practially all 130 of them over the last 4 years, will have had my spiel regarding the competitive benefits of standardisation (eg IBM PC, GSM phones, SIP). Basically standards increase choice and reduce costs.

Our position regarding the support of VoIP handsets has however been very conservative on the basis that it is impossible for a service provider to provide a quality level of support for a huge range of handsets. Actually this applies in the mobile world just as much as in VoIP although to a lesser extent because GSM is a maturer technology.

I have to say though that as SIP becomes seriously mainstream as the signaling protocol of choice for VoIP my attitude towards handset support is changing. This is bolstered by the availability of a wider range of quality products from market leaders such as Nortel, Cisco and Polycom.

The picture below shows the handsets that we have either already been providing or are in test for production in the near future.

Its horses for courses.

Business internet voip

September 11th

It is 7 years to the day when the 9/11 tragedies happened in the USA. The event has different memories for us all.  I was attending a SIP Summit VoIP conference in Austin Texas and Tuesday 11th September was the first day. The conference was abandoned after the first day and most Americans hired cars and drove home. In some cases it was a 3 day drive.

The experience of overseas attendees was a strange and highly stressful one as noone knew when they would be able to go home. I eventually made it out on the Saturday on a very nervous flight. The barman at the airport hotel where we were staying said that we were the first regulars he had ever had.

The event was quite significant from a technology perspective. The mobile networks in New York stayed working although it was virtually impossible to get a line. The fixed line network did not work – the Central Office (telephone exchange) in the area had burnt to the ground.

What did remain up was the internet and students at Columbia University, which is where Professor Henning Schulzerinne did much of the development of VoIP signalling protocol SIP, were able to call home using their University VoIP accounts.

Internet Protocol, the IP in VoIP, was designed to run over networks resilient to nuclear attack. 9/11 was a good, if terrible, real life test bed for this. 

Business mobile connectivity UC video voip

Nortel carrier strategy

Had a really good meeting with the Nortel Carrier team on Wednesday – I’ve not really had a chance to write it up and post before now. The meeting was held to discuss their SIP/multimedia product roadmap. The Nortel Enterprise Division has been making a lot of noise in the multimedia/Unified Comms space (SCS500 – I’ll write a piece on it soon) but I had been afraid that the Carrier side had sold its soul to Microsoft.

This turns out not to be the case. The Nortel AS5200 platform, which is the SIP platform used by Timico, has been adopted by a number of major Tier 1 operators and is benefiting from what seems to be a large amount of attention and investment. This to me is a very sensible thing for Nortel to do as the 5200 represents a leading edge platform for them – one which is streets ahead of any competition in the hosted VoIP/Unified Comms space.

Timico has been selling services on the back of the 5200 for 2 – 3 years. We are talking hosted VoIP, video, IM, presence, collaboration – perfect for small offices and homeworkers. The Nortel developments look to be adding more PBX type features that fill in some holes in the 5200’s repertoire. Whats more it seems to me that this switch is moving in the direction of becoming Nortel’s main carrier play. After all the CS2k, which gives Nortel its huge lead in the market, is a platform designed to emulate legacy services but in a much cheaper way than its DMS 100 TDM swich.

What’s more, new features such as federated presence, FMC, links to external directories and better support for SIP Trunks will keep Nortel at the forefront of the business communications space and allow tight integration with its Enterprise products – something that we haven’t seen before.

This is reinforced by the movement of Enterprise staff to the Carrier to aid the process.

Lastly but by no means least Nortel is moving the 5200 to Linux which will have a huge impact on the cost of rolling out and supporting 5200 based services and which I whole heartedly welcome.

I look forward to growing our Nortel relationship.


Business voip

How will 21CN affect my telephone line?

We had an enquiry from a customer this morning:

“I am persistently being contacted by David from ***** who has advised me that with 21CN BT are changing every business line from Analogue or ISDN to a SIP network and that there is no choice in the matter”.

David was trying to get the customer to move to a SIP service by telling her that she would need to do it soon in anycase so she might as well preempt it by doing it now. As a SIP provider I am not averse to selling SIP services but this has to be approached ethically.

From the customer’s perspective BT aren’t getting rid of analogue lines or ISDN. What they are doing is changing the connection at the exchange so that all calls will run over voip between exchanges. This will make the network more efficient/cheaper to run and potentially allow for the introduction of new features in the future.

So any kit the customer has should still work and they will still be ordering new lines as they do now. They needn’t worry about having to re-equip their office.

Potentially there will be new products such as the ability to order broadband and voice as a single line. This is effectively what LLU operators do today though some may sell it as a free broadband line (comes with notoriously “cheap” quality and customer service etc).