IOS bug in SIP call setup: Non-incrementing CSeq header field value
We encountered an issue with our Cisco 2621 GW in call set-up with some SIP phones and SIP servers. The Cisco sends problematic re-invite messages which doesn't get any positive response to it because the Cisco does not increase the CSeq header value in the re-INVITE messages !
does anyone know how to resolve the issue of in Cisco? Maybe we should use a different version of IOS.
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