>>Does that mean there is nothing like a call waiting feature when I place a call through Google Voice on my OBI200?
An OBi ata supports call waiting:
Physical Interfaces - PHONEn Port - Calling Features::CallWaitingEnable = checked (default and required on an OBi202 to enable internal barging into the second OBi202 phone port/line/call.)
I understand that GV only 'supports' call waiting when the inbound call to GV is routed to a DID/carrier that supports carrier call waiting, and that carrier call is routed to a device that supports call waiting, such as your OBi ata.
So, maybe an inbound call to GV that routes though Google Chat via XMPP to your OBi ata will not support call waiting... another GV 'free' limitation. I wonder if GV-OBi call waiting works through Simon Telephonics' Google Voice SIP Gateway
https://simonics.com/services/. Maybe not... Simon does not list it as a feature.
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