Hi,
I am unable to find any VOIP service providers that are compatible with MS Exchange Unified Messaging. We are a small firm with only two phone lines, but we would still like to take advantage of UM. We already subscribe to Office 365 E3. I have contacted two major virtual PBX service providers - Vocalocity and RingCentral - but neither is compatible with UM. From an Office 365 blog post I read that Lync server can also provide "dial tone" service, but when I go to Lync admin page in my Office 365 account admin site, I don't see any options for configuring that (Is this specific only to on-premises Lync server?). Microsoft website provides a list of system integrators but that is way above and beyond of my needs. Where can I find a list of VOIP service providers for a very small business that are compatible with Exchange UM?
Thanks in advance!