I have an issue mentioned below:
If a users on Phone A (ext. 1237) calls a user on Phone B (1238) the connection establishes, however the audio is delayed 6 -10 seconds, in both directions.
Only calls between IP phone to IP phone have the audio delay issue, if any of the local IP phones receives or connects a call via the voice gateway, there is no audio delay.
I would be grateful if someone could help me in this case