I try to connect a Cisco 7960 SIP Phone to a Vegastream PSTN Gateway. I am able to make a call to a phone in the PSTN but after i answer the call the cisco phone immediatly drops the line and sends a BYE message to the Vegastream. I looked at the SIP-Messages and found a Error Message "error on sipSPICheckContact" from the cisco 7960 and after that it sends the bye message.
What does this error message mean and how can i solve this problem?
SIP traces provide key information in troubleshooting SIP Trunks, SIP
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clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
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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CUCM Database Replication is an area in which Cisco customers and
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