Are the VVX 411 VoIP phones able to separate number sources? In other words, accept incoming/outgoing calls from provider A (ringcentral) and also provider B (skype for business) - 2 phone numbers from 2 separate sources. All the information I've read defaults to having one provider issue multiple phone numbers (up to 12 separate phone numbers and users). Other answered posts seem to indicate multiple phone sources are not possible, but sighted firmware as the reason.
Jan 25, 2016 Question:How many Lines can I register using Polycom phones with Lync Server / Skype for Business server ?
Resolution: You can register only one line when Lync is set as the base profile on the phone. The Polycom Trio has a Hybrid registration feature from UC Software 5.5.2 or later. Details can be found in the Trio Admin Guide or => here <=
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If you only use SIP you can have as many lines as the phones supports.
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