[reSIProcate] DNS question

[Robert Mansfield <RJM@xxxxxxxxxxxxxxx>]

Title: Message

All,

 

Should the application use DNS procedures to ascertain the transport to reach the next hop prior to sending the message to the sip stack? I've run a test whereby I've submitted a INVITE request using "UDP" in the construct of the Via header. The DNS lookup for the target returns with a TCP record so the message is sent out via TCP but the text of the message still indicates UDP. Is this valid?

 

Regards,

 

Rob Mansfield

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Robert Mansfield

Senior Software Engineer

Redwood Technologies Limited

Tel +[44] (0)1344 304 344

Fax +[44] (0)1344 304 345

E:mail mailto:rjm@xxxxxxxxxxxxxxx

Web http://www.redwoodtech.com

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