[SIPForum-discussion] Contact Header being changed by a SIP Prxy.

[mohab emara]

Agree with Stewart, and find below the filtered data from table 2 concerning
this point

 Header field          where   proxy ACK BYE CAN INV OPT REG
___________________________________________________________
Contact
R            o   -   -   m   o   o        Contact                1xx
-   -   -   o   -   -        Contact                2xx           -   -   -
m   o   o        Contact                3xx      *d*    -   o   -   o   o
o        Contact                485           -   o   -   o   o   o

Where Bold d stands for delete only.

Br,
Mohab


On Wed, Sep 10, 2008 at 4:02 PM, Stewart Bunce <Stewart.Bunce at telsis.com>wrote:

>  According to Table 2: Summary of header fields, A--O in RFC3261 a Proxy
> can only modify the Contact header field in 3XX responses and even then it
> is only allowed to delete it/them not modify.
>
> Stew
>
> -----Original Message-----
> *From:* discussion-bounces at sipforum.org [mailto:
> discussion-bounces at sipforum.org]*On Behalf Of *usman chaudhry
> *Sent:* 10 September 2008 10:41
> *To:* discussion at sipforum.org
> *Subject:* [SIPForum-discussion] Contact Header being changed by a SIP
> Prxy.
>
> Hello All,
>
>     According to RFC 3261 is a SIP proxy allowed to change the Contact
> Header for an INVITE
>
> regards
> Usman.
>
>
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