GSM Gateway Problems with Outbound Calls

Hello. Can anybody help me please.

I have a FreePBX
and a GSM Gateway Yeastar TG100.
I wana to Call out and in via GSM Network.

So i have createt an SIP Trunk on the Freepbx.

Calls witch ar goinig in (mobiletoip) works perfect.

But Calls IPtoMobile the Provider dosn’t Accepts the number and hangup.

I think the reason, it is because the Freepbx side send the INVITE with wrong number, so that TG100 call to a wrong number.

Have anyone an idea how i can change this option on my freepbx?



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