I use a Vtech 3 Handset Cordless System Model# IA5878 which is probably at least 5 years old, probably older, connected to an OBi110 (1.3.0 Build: 2719). I have GV on SP1 and
voip.ms on SP2. I get call waiting callerid shown on the handsets for an inbound call to GV or my
voip.ms DID (ported from AT&T for $10 during the "kick callcentric while they're down sale") when a call is already in progress.
The OBi110 Phone Port CallerIDEnable and CallWaitingCallerIDEnable are both checked (default values).
I see the call waiting callerid in the OBi110 call history log as well. For those of you not getting call waiting callerid displayed on your phone handset, what does your OBi call history show for the call?