one-way audio through a 6608 PRI Gateway to Nortel PBX
I have recently installed two ports of a 6608 blade as PRI gateway connections to a Nortel PBX. This allows for IP Phones to call Nortel Phones and the Nortel is also the IP Phones gateway to the PSTN. My problem is I have intermittent problems with one way audio. The IP Phone user cannot hear the PSTN or Nortel caller, but the Nortel or PSTN caller has no trouble hearing the IP Phoner user. The originating direction of the call is unimportant.
During one of these calls, iF you look at the call statistics on the IP Phone, RX and TX counts increment just as they do in a successful call. Statistics on the PRI gateway do not look unusual either.
Has anyone out there experiened this. Any possible solutions or troubleshooting advice.
Re: one-way audio through a 6608 PRI Gateway to Nortel PBX
Hi Geoff, I've IPT system with a 3745 router-gateway into the PSTN via an E1 and a combination of 3750 & 3550's with 7960 & 7940's. To overcome the problem you've described I've had to use 12.2(15)T5 in the gateway and P00305000101 code in the IP phones. That has diminished the occurance of the probelm from an average of once every 2 hours to once every 7 or so days.
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The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.