Good afternoon friends, I have the following difficulty, until yesterday everything was working fine, but today I wake up with the entrance of the trunk of my operator entering the call, but when I answer it hangs; I do not know if I have to see that last night I did 2 things: go from LDAP to Active Directory and additionally update pending modules.
I would appreciate your help.
I could already solve it by changing the codecs. 
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Would you please share which codec you had and which one you’ve chosen now?
was a suggestion by your Call provider?