Selects the protocol that matches the network service provider’s protocol in countries whose public networks allow multiple layer-3 signaling protocols for ISDN-PRI service. Contact the network service provider to verify that the protocols match.
Other:
The AT&T Switched Network Protocol prohibits restricted displays of connected numbers. Display problems occur if you administer the 1a country-protocol/ protocol-version combination on the DS1 screen and administer the ISDN-PRI Trunk Group to restrict sending the connected number.
