We are facing an issue with the phones getting the temp fail on the ip phones.When the ip phones calls up the pstn gateway in U.S there is temp fail on the ip phones only with few calls,majority of the calls are getting through.The rtp set up is happening then the error is seen and nothing is heard.The call manager version is 4.2(1) without any service release and os version is 2000 4.3a sr.Do we need any sr on the 4.2(1)?
Sounds more like you have gateway problem, not a ccm problem.
- phone connects to CCM
- CCM sets up the call to the gateway
- CCM hands the call to the gateway
- gateway and IP phone connect
- CCM drops out of the loop completely.
So if the call is setup, the call is connected, but no audio is heard, you have a codec or routing issue possibly at the gateway. I would try and reset the gateway from CCM or even log into the gateway, reset it and try again.
Thanks for the reply.We had seen the lack of resource on the router so would be adding more dsps to the gateway router in U.S.But it is not the same router from where the phones have there cnfbridge and xcode configured.As this router is the gateway router in U.S and the router from where we get the cnfbridge and xcode is in india.
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Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...