Compatibility with Nokia E-CSCF
Hello, colleagues.
Does anybody have an experience of integration of Oracle SBC with Nokia E-CSCF (CFX-5000 Core)? I faced a kind of principal problem: once SBC/P-CSCF receives an INVITE with urn:sos, or sip-uri formated call to 112, it applies NMC rule, adds a Route header with a hostname of E-CSCF and forwards the INVITE to E-CSCF in accordance with the Route header's processing logic. NMC routing has a priority higher than a reg-cached routing info.
Nokia team wants SBC to send the INVITE to E-CSCF, but with a hostname of S-CSCF in Route header - and to me it sounds like a non-standard or incorrect workaround. Have you ever met such a requirement? Can you please share your experience?