I’m not alone in talking about SIP Trunking and SIP Trunking providers, as it turns out. SIP Trunks, as I discussed in this blog post, can provide a lot of benefits, not the least of which is cost reduction. The more you look at Sip Trunk Providers, though, the more you realise that not all providers are equal.
Microsoft has done a good job in qualifying Sip Trunk Providers and publishes a list of such providers at: http://technet.microsoft.com/en-us/lync/fp179863.aspx. This page lists the various qualified carriers and their service name. By ‘qualified’, each of the listed providers has been independently reviewed and their product is seen to support all the necessary Unified Communications Open Interoperability Program (UCOIP) requirements. You can read more about these requirements here.
In his blog, Jonathan Steeman looks at some of the differences between SIP providers in terms of the functions and features they provide. The more I read this post, the more it is clear that there really is a great deal of difference between the qualified trunk providers. If you are considering a SIP trunk, then you should take a close look at this blog entry and work out which of the mentioned features are important to you.
I’d love to hear of any experiences, good or bad, you are having with any of these named providers.