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Cisco Bug: CSCua96500 - Wrong NATing of SDP Header in ReInvites

Last Modified

Jan 24, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

The IP address in the SDP reInvite header is being NAT'ed which breaks the voice connection after 3 minutes.

2 phones on the inside establish a voice call using SIP, the SIP Server/Provider is located on the outside
NAT overload is configured
Zone Based Filrewall is configured
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