In previous discussion i raised a question about having the router not able to recognize the T1 card (HWIC-1CE1T1-PRI). They told me that you don't either have DSP module installed or the IOS version needs to be upgraded.
I made sure i have DSP module installed and i found out that the IOS version on the router (cisco 2821) is 12.4(9)T while this T1 card requires minimum 12.4(20)T. I checked it on the cutsheet.
Is there an older version of T1 card that i can use and it works with the 12.4(9)T IOS version.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
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Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
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