I just upgraded from
asterisk-1.4.21 asterisk-addons-1.4.7 zaptel-1.4.11 kernel-2.6.24-r8
asterisk-184.108.40.206 asterisk-addons-220.127.116.11 dahdi-18.104.22.168 kernel-2.6.30-r6 FreePBX 2.6.0.rc2.1
My PBX has a pair of Digium TDM400p pci telephone cards:
# Span 1: WCTDM/4 "Wildcard TDM400P REV I Board 5" (MASTER) fxoks=1 echocanceller=mg2,1 fxoks=2 echocanceller=mg2,2 # channel 3, WCTDM/4/2, no module. # channel 4, WCTDM/4/3, no module. # Span 2: WCTDM/4 "Wildcard TDM400P REV I Board 5" fxsks=5 echocanceller=mg2,5 fxsks=6 echocanceller=mg2,6 fxsks=7 echocanceller=mg2,7 # channel 8, WCTDM/4/3, no module. # Global data loadzone = us defaultzone = us
I also have SNOM 360 phones (SIP)
After upgrading, I now have a noise (hissing static) problem.
If I make an internal call from one SNOM SIP extension to another (say from extension 101 to 102)
extension 101 hears good quality audio, but the receiving party hears hissing static. If I make the reverse call from 102 to 101, then extension 101 hears the hissing static but not 102.
Also if I make a call from the PSTN dahdi trunk, I hear hissing static noise when the FreePBX receptionist IVR answers the call and plays the greeting. Then when I get connected to my extension, the audio is just fine. Also, if I use an internal SIP phone to dial 7777 (simulate incoming call) I hear the same hissing.
Thanks for any ideas on where to begin troubleshooting this.