I have one Google Voice number ("A") that forwards to two mobile 'phone lines ("B" and "C"). Voicemails left for all three numbers (A, B, or C) are collected in my single Google Voice inbox.
When viewing a message, how can I determine which number was dialed?
Best Answer
I've searched high and low because I had a similar question. Unfortunately, I've been unable to find a positive answer. It appears that, right now, it's not possible.
You service provider (the telephone company) is certainly forwarding the dialed number, but Google isn't displaying to you. The dialed number is known as "DNIS" (Dialed Number Information Service). It's not a new technology or concept; answering services, and businesses that use PRI and SIP trunks use DNIS to route incoming calls to the correct departments, etc.
I wish I knew someone at Google to ask: "Do you capture the DNIS information and are there any plans to make it useful?"