Could it be a reINVITE? 

On Wed, Jun 13, 2018, 6:48 AM Wilkins, Steve, <swwilkins@mitre.org> wrote:

Hello All,

 

I have noticed that sometimes when a call is made from one endpoint to another through Asterisk via Kamailio, Asterisk sends an INVITE to Kamailio even after the call has been established.  Sometimes this does not happen.   When it does happen, calls drop.

Why would an INVITE be sent back to Kamailio?

 

Also, Pan, I am working on the response you requested yesterday.

 

Thanks you All,

-Steve

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