Hello, i have trouble with 7921G ip phones. I use them with a cisco ap with 2 vlans : a voice vlan 1 (it is the native vlan) and with a vlan data 40.
My phone register them to the ccm. I can call other phones devices (7960) but when i call a 7921 from an other 7921, the communication is established (the phone rings and there is a communication ) but i have no audio stream.
my ccm is the version 6.0.1
my phone have the firmware 1.1.1
I think it could be the fact that my native vlan and my vlan voice are the same? I have enable the arp cache and i have no peer to peer acl enabled on my ap.
thanks to help me