I am having a problem with a Rhino channelbank. I have an Asterisk server running 1.6.2.9 and DAHDI 2.4.0 on a CentOS 5.5 system. We have a TE420 card with the first port used in E1 mode (R2, 20 channels) and the fourth is in T1 mode for the channelbank. We are using MG2 echo cancellation.
The Rhino unit has 12 FXO ports. Five are GSM adapters and another five are regular phone lines. We are having problems with the GSM lines at the moment. When we enable MG2 on those lines we get dropped calls or noise or the call cannot go through. If I disable eco cancellation it mostly works (one port still drops the call almost immediately) but there is echo. Here is the DAHDI configuration: # Span 4: TE4/0/4 "T4XXP (PCI) Card 0 Span 4" B8ZS/ESF span=2,2,0,esf,b8zs # termtype: te fxsks=94-105 #echocanceller=mg2,94-105 Here is chan_dahdi.conf ; Span 4: TE4/0/4 "T4XXP (PCI) Card 0 Span 4" B8ZS/ESF group=4 context=from-pstn signalling = fxs_ks accountcode=Celulares faxdetect=no echocancel=no echocancelwhenbridged=no echotraining=no channel => 94-97,104-105 Does anyone have any suggestions on how to enable echo cancellation on the Rhino Channelbank? -- Telecomunicaciones Abiertas de México S.A. de C.V. Carlos Chávez Prats Director de Tecnología +52-55-91169161 ext 2001
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