I am receiving a 477 message from SIP server while sending a message to a registered users using SIPp. Did not see the message when I send the message to a registered user from iPhone client.
Could you please let me know if you have a solution for this?
SIP/2.0 477 Unfortunately error on sending to next hop occurred (477/SL)
Via: SIP/2.0/tcp 22.214.171.124:5061;branch=z9hG4bK-2637-1-18;rport=55364
CSeq: 1 MESSAGE
Server: kamailio (4.1.1 (x86_64/linux))