SBC Rejecting SIP Traffic with 503 due to SA Fluctuation After Performing DNS Query
(Doc ID 2507038.1)
Last updated on JANUARY 27, 2022
Net-Net OS - Version S-Cz8.0.0 and later
Information in this document applies to any platform.
SBC is rejecting SIP traffic with 503
A customer has configured SA with FQDN which is resolved by DNS server. They have recently changed the DNS server and after that issue reported.
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