I have a Call Manager 7.0 registered with Grandstream GXP 2010 SIP phones.
I have created a router pattern to use the FAC, but when a dial a number that uses the the route pattern with the FAC, there is no tone to enter the code.
Eventually the call fails.
Is there a way to make this work with third-party SIP phones with CM 7.0 ?
Or, is there a workaround to this scenario?