Permanent Incoming Call Barring (ICB) is available so that you can have outgoing only lines. All incoming calls are barred. Permanent ICB applies to both voice and data calls on all bearer services (64 Kb/s unrestricted, Speech, 3.1 kHz audio bearer services). A customer making a speech or 3.1kHz audio call to a number which is an outgoing only line will receive either an announcement stating that calls to this number are unavailable or number unobtainable tone. A customer attempting to make a 64kbit/s unrestricted call will receive a digital message indicating that calls to this number are unavailable. | | |
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