Hello everyone, kindly looking for help.
We have configured a bunch of IP Phones model 7911 in an office and between them everything works fine, no noise, no problems, all good.
However as soon as you press 0 (zerro is configured to make a call to outside) the phone starts making a noise, every 2 seconds exactly you'll hear a small noise, it happens all the time from all phones only to outside calls, or incoming calls from outside.
We are located in Cape Verde, have been trying all we can and didnt get a solution yet, any help is welcome.
Could it be anything with A law U law? Or it has nothing to do with it at all?
Thank you, very much
