26 Apr
2012
26 Apr
'12
2:10 p.m.
Hi all,
I have Kamailio connected to PSTN gateway.
Sometimes gateway replies with "503 temporary unavailable". PSTN gateway adds a "reason" header with ISUP code. But according to RFC 3261 kamailio doesn't forward 503 replies transparently. When 503 reply is received Kamailio replaces 503 with a 500 which is created from original request (build_res_buf_from_sip_req). I have tried append_hf from textops module, but it's not working with a locally generated replies.
How can i copy Reason header from 503 to 500 ?
I will appreciate your help with this situation.
Best regards, Vitaliy Aleksandrov.