Monday, July 30, 2018
Product Review Anynode SBC with Skype for Business
Product Review Anynode SBC with Skype for Business
Hello Readers. Hope youre well.
In todays issue I will be reviewing the Anynode software SBC from TE-Systems.
We all know that Skype for Business is the Swiss Army Knife� of communications platforms. Everything it does, it does well. Everything, from Instant Messaging and Presence to Sharing and Meetings and of course Audio and Video, it does at least as well as the competition. Some might say it is a truly Unified Communications platform.
Ive said before that Lync and now Skype for Business can replace so many disparate things that a return on your investment is pretty well assured. This is especially true when you replace your existing/old PBX with Skype for Business.
The savings comes from a few places and starts with space. Old PBXs can be huge. Some can take up whole rooms or even floors in buildings. The components can be made up of several cabinets worth of hardware just to make it all work. All of these cabinets require power. Add to that are the racks of, sometimes, proprietary patch panels wired into the system for all of the phones. Some old systems can be made to take IP Phones, but thats another cabinet full of components.
Next is maintenance and support. The older the PBX the more it costs to maintain and support. Over time, components for the PBX become more and more rare, and rare means expensive. Over time, the knowledge and expertise becomes more rare as well. You either need to have someone on staff that is an expert in this thing or find and retain the expertise from a service provider. Either way, you pay a premium for retaining the expertise.
Then there are the lines. The universal standard is ISDN. ISDN is expensive, especially when compared to SIP (Ill come back to that). But it isnt just the expense of ISDN.
ISDN is largely inflexible
Firstly, it relies on the equipment it is connected to, to make it work. Not all ISDN is created equal. There have been several variants over the years. Nowadays the standard is Euro ISDN, QSIG and some other regional variants. Go back a few years and you might have DASS or DPNSS. If you do have one of these legacy lines it means that if you ever want to change your PBX you need to be sure that the new system can cope with them. This might mean media converters (something else to go wrong), although in some cases, your telco might be able to upgrade your lines to a modern standard.
Secondly, if you want to move anywhere, you might not be able to keep your numbers. Ive seen cases where someone wanted to move to the other side of the road and were told that they couldnt keep their numbers because they would be in a different part of the exchange.
Thirdly, resilience is a pain. Since an ISDN line is installed in a physical box in the comms room that creates a single point of failure. That line can only be plugged into one PBX/Gateway for a start. And because the numbers are tied to that box they cant be easily moved in the event of a disaster. There are, of course, new ways to tackle that. Cloud numbering is one solution. This is essentially migrating your number ranges to your telcos cloud (SIP) and they point those numbers to a completely new and unrelated range of numbers that live on the ISDN box. This adds an additional level of complexity because you need number manipulation in your gateway or PBX to point these fake numbers to the published numbers of your staff on the way in. And on the way out you need to manipulate them again so that the published number gets presented to the callee.
ISDN is Expensive
I said Id come back to this. ISDN is many times more expensive than SIP trunks for the equivalent number of channels. If you have a few multi channel ISDN lines in one office thats bad enough. Compound that by having lines in many offices and you will be spending a small fortune. Line rental is just one component of the cost. The actual call rates are always cheaper on SIP.
SIP is Better
SIP is cheaper, more flexible than ISDN. It is also resilient and portable. You can have all of your numbers from all of your sites ported to SIP and have them delivered to one or more locations. This gets connected to your telephony equipment or your Lync or Skype for Business platform using a Session Border Controller (SBC). Which brings me nicely to the point of this post.
Do I need an SBC?
The short answer, is no. But the better answer is yes. Deploying an SBC has numerous security benefits such as eliminating spoofing, denial-of-service attacks and toll fraud. On a more practical level an SBC is a gateway between several systems. On one side you have your SIP trunks from one or more providers. On the other you have your PBX, your FXS VoIP gateways and Skype for Business. The SBC/Gateway is the glue that binds all of these systems together. The SBC is there to make routing decisions to point calls from one place to another. From one system to another. For instance, a call from your SIP provider can be routed to your PBX or Skype for Business, or an FXS gateway and on to an analog device, or a SIP phone registered directly to the SBC, or all of the above. The SBC is the one device that can talk to all devices.
Do I need an SBC for Skype for Business?
If you only have a single qualified SIP provider to connect Skype for Business to the PSTN, you can configure your Mediation Server to connect directly to the SIP Peer of the provider. Keep in mind, however, that this means you need a Mediation Server which has a leg in your perimeter network AND your LAN. This exposes your LAN and your Skype for Business servers to the outside world. Of course this can be locked down by the firewall but you get the point. I mentioned qualified above. Not all SIP providers are qualified to be connected directly to Skype for Business. In fact there are surprisingly few that are. Similar to the surprisingly few SBCs that are qualified to be connected to Skype for Business.
Qualification is important
Ive mentioned this in several posts now, but qualification, when it comes to Lync and Skype for Business, is vitally important. It means that the vendor has shown a commitment to the ecosystem, for one. And it means that the device or application has undergone testing from Microsoft to make sure it works.
Qualification is a process vendors go through with a Microsoft program called the Unified Communications Open Interoperability Program (UCOIP for short). The vendor submits hardware with particular versions of software to Microsoft for testing and Microsoft either grants it or doesnt.
Currently the vendors are (in alphabetical order) Acme Packet, Anynode, Audiocodes, Avaya, Ferrari Electronic and Sonus.
For a full list of those that are qualified click here.
On with the show.
The Review - Anynode SBC from TE-Systems
What is it?
The Anynode SBC from TE Systems is a software SBC that runs as an application on Windows and Linux (Debian or Ubuntu). It can run as a physical or virtual server and can even run, Im told, on a Raspberry Pi. It can apparently run as an application on your SfB Mediation server, although I cant imagine that is supported.
Why do you need one?
As Ive said above, you need an SBC to be the gateway between your Skype for Business environment, your SIP provider and your PBX estate.
Now you have one
Now you have it, you pick your variant, download it and install it. Im running it on a standalone Windows Server 2012 R2 x64 virtual server.
Installation is really easy and takes just a few minutes. Double click on the EXE and you get the following splash screen.
You will be taken to a license wizard
Now that the system is licensed it needs to be configured. At first run this is what you see.
You can go through the menus and manually configure every component (I think), but there are also Wizards. Who doesnt love a wizard?
First, Configure your Skype for Business environment
Now you create a new network adapter
Now enter your SIP domain or a specific host address, port and protocol of your mediation server.
If you want to load balance to multiple mediation servers, create multiple SRV records. If you have an order of preference, you can use the Priority and Weight fields. The record with the lowest Priority is chosen first (like an MX record). Weight is used for load balancing. If you have more than one record with the same priority, the weight is used to select the order they are picked. Larger weights should be given a proportionately higher probability of being selected.
If you have any incoming or outgoing manipulations enter them in the next two screens. Otherwise skip ahead to Name.
This takes you back to the main wizard. Next you choose your VoIP provider.
Now assuming everything was correct, it should be working. The whole thing took about 10 minutes because it was the first time I had seen it. I recon you could get it down to just a few minutes the more you do.
If you need to edit a Node, f
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