voice quality degradation when transferring to another extension
Posted on 2013-08-30
We are experiencing voice quality degradation when transferring call to another extension within office. PBX systems in all offices are Asterisk or different flavors of it (Elastix,Trixbox,AsteriskNOW). IP phones are Polycom ranging IP 335, 450, 560..And we do have separate VLAN for data and voice. When in house receptionist answers the call regardless of the call was transferred thru PSTN or SIP line , quality is acceptable but when transferred to another phone , volume cuts to half, choppy... what do you think , the cause would be?