Hi, I have an issue that I could really use some help with please.
When another IP Phone 7821 calls my 8941, my phone loses registration and says on screen "Phone not registered" for a few moments.
It seems to mostly be happening on 89XX models that...
Hi
I am experiencing intermittent one-way audio problems and could really use some help!.
We are using CUCM 10.5.1 with a SIP trunk to an external SIP provider. Internal calls are bi-directional and working fine.
'MTP is required' is checked on SI...
Dear AllI really need help choosing a router to support a 100 Meg WAN. It must be able to handle the full 100 Meg throughput at an MTU size of 1440-1500. No need for modules or interface cards because I will use the onboard FE/GEs.It will just be for...
Hi. The issue has come back today and lots of people are having one-way audio issues.
I did a trace on CUCM and an IP Phone. The two attachments are snippets of a trace from CUCM to the same IP phone. I can see a difference in the SDP packet betw...
Thanks for your reply!
What are the cucm and phone firmware versions involved? CUCM version 10.5.1.10000-7, CP-8941 has sip 9-4-2-sr3-1 and CP-7821 has sip78xx.11-5-1SR1-1
Does the issue happen only when 78XX phone calls an 89XX phone? I have tested...
I enabled port spanning on my phone. After my phone restarted the first test call worked, but the second failed. I collected the traces from both calls so I have that for comparison.
I can see TCP re-transmissions from my phone during the failed ca...
Thanks for the advice guys. I ended up rebooting the server and the problem went away. I still don't really understand what caused the issue. Its the second time in 1 month that it happened and the reboot seems to clear the issue.
I will email the...
I found Miercom reports which has more details about Cisco routers and performance metrics. http://www.miercom.com/?url=reports/&v=16&st=v I checked out the Cisco Integrated Service Router Generation 2 May 2010 and I saw in Figure 3 numbers for encry...
