sipsak is very handy tool but AFAIK it lacks of simulating call flow like REGISTER, 401 etc. Only -f register.message.

2012/8/13 Brandon Armstead <brandon@cryy.com>
Sipsak

Sent from my iPhone

On Aug 12, 2012, at 10:41 PM, Anton Kvashenkin <anton.jugatsu@gmail.com> wrote:

Hello, guys. 

What is the best tool for crafting sip messages for testing purpose? For example, simple REGISTER or INVITE message. I'm new to kamailio (not sip) so it would be great for me to use debbuger module for step-by-step digging into cfg.
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