[SOLVED] Problem with call in a mobile network

I’ve a problem when I use mobile network
A pjsip extension registered in a network mobile can do a call, but can’t receive call
I tried with GS Wave Video and CSipSimple client with Andorid 5,6,7 version but not work
Maybe a NAT problem?
Can you help me?



the log say:

[2017-05-22 11:44:48] WARNING[16909][C-00000015]: app_dial.c:2525 dial_exec_full: Unable to create channel of type ‘SIP’ (cause 20 - Subscriber absent)

but extension is registered.I can call

What happens?

THNAKS A LOT user navaismo

I changed protocol to tcp into client Android