The
as a P-CSCF supports S-CSCF restoration procedures as defined in 3GPP TS 23.380. If the
as a P-CSCF does not receive any response to a SIP request, sent to the IMS core or if the next hop is blacklisted by the
’s Address Reachability Service (ARS), it rejects the request with a 504 (Server Time-out) response. The
uses its path header as P-Asserted-Id header in the response message. The error response also carries MIME body type "application/3gpp-ims+xml" with the following content:
...
For
configuration details,
seerefer to:
For PSX-related information, refer to the PSX documentation.