Dears,
We have currently a UCCX cluster version 11.5 configured to use G711 (in system parameters).
Calls from the PSTN to the UCCX Triggers are working just fine. However, internal calls from branches (over the WAN) are failing (callers get a busy signal).
We have checked the regions configuration in CUCM, all regions are configured to use G729 to communicate with the head office where the UCCX Triggers (CTI Route Points & CTI Ports) are registered.
We have created a testing region that uses G711 >> the issue got resolved.
When we tried to change the codec in UCCX to G729, the audio prompts quality became very bad.
Changing the codec to G711 over the WAN is not an option as the bandwidth won't be enough.
Any suggestions on what could be done?
Thank you in advance.
Regards,