[OpenSIPS-Users] sending sip options

Michel crans mcrans at gmail.com
Tue Oct 10 04:29:04 EDT 2017

when i send from opensips an option request i receive a 400-bad request.
I guess this is because its missing the contact header ( wich i dont need
according the sip rfc)


    vsipproxy01.local.sip > sbc02.local.sip: [bad udp cksum 0x3c1d ->
0x1818!] SIP, length: 337

        OPTIONS sip:x.x.x.x SIP/2.0

        Via: SIP/2.0/UDPy.y.y.y:5060;branch=z9hG4bKc3cc.ef1bf0e.0

        To: sip:x.x.x.x

        From: <y.y.y.y>;tag=6fdf67c715032fa03eb7e6e879881122-9108

        CSeq: 10 OPTIONS

        Call-ID: 0afc4f6a31598fc1-6433 at y.y.y.y

        Max-Forwards: 70

        Content-Length: 0

        User-Agent: OpenSIPS (2.2.5 (x86_64/linux))

    sbc02sig.local.sip > vsipproxy01.local.sip: [udp sum ok] SIP, length:
        SIP/2.0 400 Bad Request
        Via: SIP/2.0/UDP y.y.y.y:5060;branch=z9hG4bKc3cc.ef1bf0e.0
        From: <>;tag=6fdf67c715032fa03eb7e6e879881122-9108
        Call-ID: 0afc4f6a31598fc1-6433 at y.y.y.y
        CSeq: 10 OPTIONS
        To: <sip:>;tag=3716609745-661445930
        Content-Length: 0

help is much appriciated.


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