[SR-Users] BYE dialog timeout bad syntax

[Klaus Darilion]

Seems like a valid bug report.

I think an easy workaround would be to always use name-addr syntax.

regards
Klaus


On 24.04.2013 14:58, Julia wrote:
>
> Hello,
>
> The BYE, generated by Kamailio in case of dialog timeout, is malformed:
>
> /BYE sip:anonymous at 192.168.225.2:50601 SIP/2.0/
>
> /Via: SIP/2.0/UDP 172.16.60.113;branch=z9hG4bK77b6.941684b6.0/
>
> /Via: SIP/2.0/UDP 
> 10.1.1.10;branch=z9hG4bKsr-JfymiMenCtp4urS5CXSnCHJnCXJZiHvRCHYJb6ggNPN9NVDL3-TWhdW0UvOfN1KPTReRiHy1CHmcs6mZiHS*/
>
> */To: sip:anonymous;cpc=ordinary at 192.168.225.2;tag=01e3a8c0-c1c2-t-1/*
>
> /From: 
> sip:1255010006 at 192.168.225.2:5060;user=phone;tag=813142547-1366730270587/
>
> /CSeq: 465332801 BYE/
>
> /Call-ID: 1aebb42c-01e3a8c0-000007c2 at 192.168.225.2 
> <mailto:1aebb42c-01e3a8c0-000007c2 at 192.168.225.2>/
>
> /Content-Length: 0/
>
> /User-Agent: kamailio (3.3.2 (x86_64/linux))/
>
> /Max-Forwards: 69/
>
> The bad syntax is located in the "To" header field.
>
> According to the RFC 3261 section 25.1, the grammar of the To header 
> field is as follow:
>
> To        = ( "To" / "t" ) HCOLON ( name-addr
>
> / addr-spec ) *( SEMI to-param )
>
> name-addr =  [ display-name ] LAQUOT addr-spec RAQUOT
>
> addr-spec =  SIP-URI / SIPS-URI / absoluteURI
>
> to-param  = tag-param / generic-param
>
> The RFC 3261 section 20.10 explains that:
>
>    Even if the "display-name" is empty, the "name-addr" form MUST be
>
>    used if the "addr-spec" contains a comma, semicolon, or question
>
>    mark.  There may or may not be LWS between the display-name and the
>
>    "<".
>
> As the "addr-spec" */sip:anonymous;cpc=ordinary at 192.168.225.2/* 
> contains a semicolon, it means that the "name-addr" form must be used. 
> The "To" header field should be encoded as follow:
>
> */To: <sip:anonymous;cpc=ordinary at 192.168.225.2>;tag=01e3a8c0-c1c2-t-1/*
>
> BR,
>
> Julia
>
>
>
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