System and method for determining trust for SIP messages
A method for performing initial registration is provided. The method includes receiving a server timeout message, the server timeout message including at least a field set to a value equal to a value received during a first registration. The method further includes initiating restoration procedures by performing an initial registration.
1. A method in a user agent (UA) for identifying an originator of a Session Initiation Protocol (SIP) reject response, the method comprising:
sending a SIP request; and
receiving, from the originator, a SIP reject response to the SIP request, the SIP reject response including an indicator comprising a parameter “fe”, the indicator indicating an assignment of one of a plurality of types of network nodes to the parameter “fe”, the indicator indicating a type of network node for the originator.
2. The method of claim 1 , wherein the indicator comprises a Uniform Resource Identifier (URI).
3. The method of claim 1 , wherein the plurality of types of network nodes comprise names for at least one of a Proxy Call Session Control Function (P-CSCF), a Serving Call Session Control Function (S-CSCF), an Interconnect Border Control Function (IBCF), or an Application Server (AS).
4. The method of claim 1 , wherein the plurality of types of network nodes comprise acronyms for at least one of a Proxy Call Session Control Function (P-CSCF), a Serving Call Session Control Function (S-CSCF), an Interconnect Border Control Function (IBCF), or an Application Server (AS).
5. The method of claim 1 , wherein the originator is a server.
6. The method of claim 1 , wherein the SIP reject response includes a SIP header, the SIP header including the indicator.
7. A method in a user agent (UA) for identifying an originator of a Session Initiation Protocol (SIP) reject response, the method comprising:
receiving a SIP request; and
sending a SIP reject response to the SIP request, the SIP reject response including an indicator comprising a parameter “fe”, the indicator indicating an assignment of one of a plurality of types of network nodes to the parameter “fe”, the indicator indicating a type of network node for the originator.
8. The method of claim 7 , wherein the indicator comprises a Uniform Resource Identifier (URI).
9. The method of claim 7 , wherein the plurality of types of network nodes comprise names for at least one of a Proxy Call Session Control Function (P-CSCF), a Serving Call Session Control Function (S-CSCF), an Interconnect Border Control Function (IBCF), or an Application Server (AS).
10. The method of claim 7 , wherein the plurality of types of network nodes comprise acronyms for at least one of a Proxy Call Session Control Function (P-CSCF), a Serving Call Session Control Function (S-CSCF), an Interconnect Border Control Function (IBCF), or an Application Server (AS).
11. The method of claim 7 , wherein the originator is a server.
12. The method of claim 7 , wherein the SIP reject response includes a SIP header, the SIP header including the indicator.
13. A user agent (UA) to identify an originator of a Session Initiation Protocol (SIP) reject response, the UA comprising:
one or more processors configured to:
receive a SIP request; and
send a SIP reject response to the SIP request, the SIP reject response including an indicator comprising a parameter “fe”, the indicator indicating an assignment of one of a plurality of types of network nodes to the parameter “fe”, the indicator indicating a type of network node for the originator.
14. The UA of claim 13 , wherein the indicator comprises a Uniform Resource Identifier (URI).
15. The UA of claim 13 , wherein the plurality of types of network nodes comprise names for at least one of a Proxy Call Session Control Function (P-CSCF), a Serving Call Session Control Function (S-CSCF), an Interconnect Border Control Function (IBCF), or an Application Server (AS).
16. The UA of claim 13 , wherein the plurality of types of network nodes comprise acronyms for at least one of a Proxy Call Session Control Function (P-CSCF), a Serving Call Session Control Function (S-CSCF), an Interconnect Border Control Function (IBCF), or an Application Server (AS).
17. The UA of claim 13 , wherein the originator is a server.
18. The UA of claim 13 , wherein the SIP reject response includes a SIP header, the SIP header including the indicator.
19. A user agent (UA) to identify an originator of a Session Initiation Protocol (SIP) reject response, the UA comprising:
one or more processors configured to:
send a SIP request; and
receive, from the originator, a SIP response to the SIP request, the SIP response including an indicator comprising a parameter “fe”, the indicator indicating an assignment of one of a plurality of types of network nodes to the parameter “fe”, the indicator indicating a type of network node for the originator.
20. The UA of claim 19 , wherein the indicator comprises a Uniform Resource Identifier (URI).
21. The UA of claim 19 , wherein the plurality of types of network nodes comprise names for at least one of a Proxy Call Session Control Function (P-CSCF), a Serving Call Session Control Function (S-CSCF), an Interconnect Border Control Function (IBCF), or an Application Server (AS).
22. The UA of claim 19 , wherein the plurality of types of network nodes comprise acronyms for at least one of a Proxy Call Session Control Function (P-CSCF), a Serving Call Session Control Function (S-CSCF), an Interconnect Border Control Function (IBCF), or an Application Server (AS).
23. The UA of claim 19 , wherein the originator is a server.
24. The UA of claim 19 , wherein the SIP reject response includes a SIP header, the SIP header including the indicator.
25. A non-transitory computer readable medium comprising instructions that when executed by a processor of a user agent (UA) configured to identify an originator of a Session Initiation Protocol (SIP) reject response, cause the processor to:
receive a SIP request; and
send a SIP reject response to the SIP request, the SIP reject response including an indicator comprising a parameter “fe”, the indicator indicating an assignment of one of a plurality of types of network nodes to the parameter “fe”, the indicator indicating a type of network node for the originator.
26. A non-transitory computer readable medium comprising instructions that when executed by a processor of a user agent (UA) configured to identify an originator of a Session Initiation Protocol (SIP) reject response, cause the processor to:
send a SIP request; and
receive, from the originator, a SIP reject response to the SIP request, the SIP resect response including an indicator comprising a parameter “fe”, the indicator indicating an assignment of one of a plurality of types of network nodes to the parameter “fe”, the indicator indicating a type of network node for the originator.