I have some Grandstream gxv3275 in our system.
some off the phones working fine, but on other phone only the local call are ringing, the call from outside the company are only shown on the display but there is no ringtone. i reconfigurate the phone more than one time also with factory restet it is not working.
some off the phones working fine, but on other phone only the local call are ringing, the call from outside the company are only shown on the display but there is no ringtone. i reconfigurate the phone more than one time also with factory restet it is not working.
