On 28 Dec 2015, at 09:51, Mititelu Stefan fanx07@gmail.com wrote:
Hello,
What is the simplest way to configure Kamailio to generate periodical OPTIONS to the caller, for an established dialog?
Can you give me some starting references?
To be SIP correct, a proxy may not insert any transactions in a dialog between two endpoints. The endpoints have the cseq counter and inserting anything will mess with the CSEQ.
Having said that, the dialog module has a keep-alive function that does this. It may generate strange error messages which is fine. You want to test the behaviour on a per-device basis.
Cheers, /O