Andma. In 5.2.13 I have "Codec Auto Nego = Enable", "SIP Trunking Codec PR1 = G.729" and "SIP Trunking Codec PR2 = G.711a", PR3 & PR4 set to Disable.
Same problem on inbound calls. First noticed it on Mobex\SIP off a IP Phone Ext. on inbound calls. Same thing on IP Phone & ATA. If I call my office vm from the IP Phone or ATA it will work fine with 2-way audio maybe 3 of 5 times. If I call the IP Phone or ATA from my cell phone it has the same results.
