Standlong transactions doesn't not create a dialog such as MESSAGE or OPTIONS, the same routing procedures as those used for an initial request are performed, although record routing does not need to be done because a standlong transaction doesn't not create a dialog.
From: sip-implementors-bounces@list... on behalf of prashanth.me
Sent: Sun 9/6/2009 4:02 PM
Subject: [Sip-implementors] what is a standalone transaction
Can any one help me to understand, what is a standalone transaction?
1. Is 'a standalone transaction' always outside the dialog?
2. Is it PRACK transaction a 'standalone transaction'?