[cisco-voip] I'm clueless -- and anyone help

[Walenta, Phil]

Have you checked the error counters on your other PRI lines?  There are settings for those also.  If I remember correctly, you can somehow "slave" them to the primary T1, in addition to other settings.  It for sure sounds like a clocking issue (lost/out of sync bits = noise).

________________________________

From: cisco-voip-bounces at puck.nether.net on behalf of Voll, Scott
Sent: Tue 10/26/2004 9:22 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] I'm clueless -- and anyone help



I have a VGW running 3 PRI's to the PSTN (5ess) and 3 PRIs to a PBX (qsig).

Voice calls are working fine to the PBX, but the Fax and Modem lines are getting a lot of line noise.  Any ideas?

My PBX vendor says that I need to clock for the PBX, but as soon as I do that, the PBX starts showing LOS and CRC.  Move it back to the line and it works again.

I'm running MGCP IOS GW running 12.3.8xy with CM 3.3.4sr2.

Thanks for any clues

Scott


Config:

!

ip multicast-routing

isdn switch-type primary-5ess

!

voice rtp send-recv

!

!

!

!

!

!

!

!

!

ccm-manager fallback-mgcp

ccm-manager redundant-host CMSUB

ccm-manager mgcp

ccm-manager music-on-hold

ccm-manager config server CMPUB

ccm-manager config

!

!

!

controller T1 3/0

 framing esf

 linecode b8zs

 pri-group timeslots 1-24 service mgcp

!

controller T1 3/1

 framing esf

 linecode b8zs

 pri-group timeslots 1-24 service mgcp

!

controller T1 3/2

 framing esf

 linecode b8zs

 pri-group timeslots 1-24 service mgcp

!

controller T1 3/3

 framing esf

 linecode b8zs

 pri-group timeslots 1-24 service mgcp

!

controller T1 3/4

 framing esf

 linecode b8zs

 pri-group timeslots 1-24 service mgcp

!

controller T1 3/5

 framing esf

 linecode b8zs

 pri-group timeslots 1-24 service mgcp

!

interface FastEthernet0/0

 no ip address

 no ip proxy-arp

 full-duplex

!

interface GigabitEthernet1/0

 ip address x.x.x.x. 255.255.255.0

 no ip proxy-arp

 ip pim sparse-dense-mode

 no negotiation auto

 no keepalive

!

interface Serial3/0:23

 no ip address

 no logging event link-status

 isdn switch-type primary-5ess

 isdn incoming-voice voice

 isdn bind-l3 ccm-manager

 no cdp enable

!

interface Serial3/1:23

 no ip address

 no logging event link-status

 isdn switch-type primary-5ess

 isdn incoming-voice voice

 isdn bind-l3 ccm-manager

 no cdp enable

!

interface Serial3/2:23

 no ip address

 no logging event link-status

 isdn switch-type primary-5ess

 isdn incoming-voice voice

 isdn bind-l3 ccm-manager

 no cdp enable

!

interface Serial3/3:23

 no ip address

 no logging event link-status

 isdn switch-type primary-qsig

 isdn protocol-emulate network

 isdn incoming-voice voice

 isdn bind-l3 ccm-manager

 no cdp enable

!

interface Serial3/4:23

 no ip address

 no logging event link-status

 isdn switch-type primary-qsig

 isdn protocol-emulate network

 isdn incoming-voice voice

 isdn bind-l3 ccm-manager

 no cdp enable

!

interface Serial3/5:23

 no ip address

 no logging event link-status

 isdn switch-type primary-qsig

 isdn protocol-emulate network

 isdn incoming-voice voice

 isdn bind-l3 ccm-manager

 no cdp enable

!

!

control-plane

!

!

voice-port 3/0:23

 echo-cancel coverage 64

!

voice-port 3/1:23

 echo-cancel coverage 64

!

voice-port 3/2:23

 echo-cancel coverage 64

!

voice-port 3/3:23

 echo-cancel coverage 64

!

voice-port 3/4:23

 echo-cancel coverage 64

!

voice-port 3/5:23

 echo-cancel coverage 64

!

mgcp

mgcp call-agent cmsub 2427 service-type mgcp version 0.1

mgcp dtmf-relay voip codec all mode out-of-band

mgcp rtp unreachable timeout 1000 action notify

mgcp modem passthrough voip mode nse

mgcp package-capability rtp-package

no mgcp package-capability res-package

mgcp package-capability sst-package

mgcp package-capability pre-package

no mgcp timer receive-rtcp

mgcp sdp simple

mgcp fax t38 inhibit

mgcp rtp payload-type g726r16 static

!

mgcp profile default

!

mediacard 1

!

!

!

!

!

dial-peer voice 3023 pots

 application mgcpapp

 port 3/0:23

!

dial-peer voice 3123 pots

 application mgcpapp

 port 3/1:23

!

dial-peer voice 3223 pots

 application mgcpapp

 port 3/2:23

!

dial-peer voice 3323 pots

 application mgcpapp

 port 3/3:23

!

dial-peer voice 3423 pots

 application mgcpapp

 port 3/4:23

!

dial-peer voice 3523 pots

 application mgcpapp

 port 3/5:23

!

!