[SIPForum-discussion] can someone help check is there any synax error in following ''invite'' message? Thanks.

[samuel]

There's a Via header ending with semicolon (;) which is an ilegal end of
header. Probably there's a router in between that removes a Via parameter
but leaves the ;
I've seen this behaviour with rport parameter requested by UAs.

To solve it:
*RECOMENDED*: check SIP ALG in the router
UA: check for the configuration options to not use rport.

Hope it helps,
Samuel.

2007/4/24, Xiao XiaoHong <XiaoHong.Xiao at alcatel-sbell.com.cn>:
>
>  INVITE sip:018008225975 at 101.90.62.2 SIP/2.0
> Via: SIP/2.0/UDP 10.255.251.140:5060;branch=z9hG4bK*002e-000003ab-07d2*
> 00-10.255.251.140-018008225975.a
> Via: SIP/2.0/UDP 10.255.252.6:38166
> ;branch=z9hG4bK-d87543-1449a452336c4d73-1--d87543-;
> Record-Route: <sip:Gk-int-Priv*1 at 10.255.251.140:5060;lr>
> From: "5708888"<sip:5708888 at 10.255.251.140>;tag=415ba04d
> To: "018008225975"<sip:018008225975 at 10.255.251.140>
> Call-ID: M2JiYTBiYmI1YTFhYWJlN2ZkZWI4N2I4MWJjMDBjNDQ.
> CSeq: 1 INVITE
> Max-Forwards: 30
> Contact: <sip:5708888 at 10.255.252.6:38166>
> Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,MESSAGE,SUBSCRIBE,INFO
> User-Agent: eyeBeam release 1005g stamp 32576
> P-Charging-Vector: icid-value=46286ddd00000131 at 10.255.251.140
> Content-Type: application/sdp
> Content-Length: 291
>
>
>
> v=0
> o=- 7 2 IN IP4 10.255.252.6
> s=CounterPath eyeBeam 1.5
> c=IN IP4 10.255.252.6
> t=0 0
> m=audio 38192 RTP/AVP 0 8 101
> a=alt:1 1 : VtETTu7f UkCtat9B 128.251.178.14 33970
> a=fmtp:101 0-15
> a=rtpmap:101 telephone-event/8000
> a=sendrecv
> a=x-rtp-session-id:BB6AAD4C7DC14D44933BE76B3A7CE71C
>
>
>
>
>
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