I am using AAH with 4 Grandstream GXP-2000 IP Phones.
When I dial any of the following numbers the phone hangs up and gives me a dialtone:
*72, *73, *90, *91.
It seems to be numbers that handle incoming calls (forwarding and call waiting etc).
If I change the numbers in the conf file to *42 *43 etc it works, also this problem does not happen from a softphone (x-lite) so it seems to be the Grandstream phones.
Anyone got any ideas what could be wrong?
Thanks in advance