04-13-2006 10:25 AM - edited 03-15-2019 04:18 AM
I have CME 4.0 on a 2801 with 12.4(4)XC ipvoice and 7 channels of a T1 ISDN PRI on an mft card. On my 7970 phones, which are running the latest code, when I make outbound calls to the PSTN I hear a short lived static sound usually during the beginning of the call, but often at intervals during a conversation. I have searched this forum but cannot seem to find anyone with a similiar issue. I have included relevant portions of my config. Recommendations welcome:
network-clock-participate wic 1
network-clock-select 1 T1 0/1/0
isdn switch-type primary-ni
controller T1 0/1/0
framing esf
linecode b8zs
pri-group timeslots 1-7,24
interface Serial0/1/0:23
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice voice
isdn supp-service name calling
no cdp enable
dial-peer voice 5 pots
description ** T1 PRI pots dial-peer **
destination-pattern 9911
port 0/1/0:23
forward-digits 3
!
dial-peer voice 6 pots
description ** T1 PRI pots dial-peer **
destination-pattern 9T
port 0/1/0:23
!
dial-peer voice 7 pots
description ** T1 PRI pots dial-peer **
incoming called-number .
direct-inward-dial
port 0/1/0:23
voice-port 0/1/0:23
Thanks in advance,
Tony
04-13-2006 10:29 AM
Not sure if this will help!
04-13-2006 10:57 AM
I do not dee your DSP resources and I thought you can not do voice on a 2801 the processor power is too weak. I have seen this issue in FXO ports and the DSP was bad also use a T train IOS 12.4(3b) is also a good one.
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