Remote Gateway 9150 Installation and Administration Guide 253June 2005 Configuring the Remote Gateway 9150 unitCall appearance keysThe host call appearance key is defined for each station on the host PBX. It isnot defined for each station on the Remote Gateway 9150 unit.The local call appearance keys, on the other hand, must be defined for eachstation connected to the Remote Gateway 9150 unit to allow: users to place outgoing calls using Remote Gateway 9150 trunks users to place station-to-station calls without host PBX control incoming calls on Remote Gateway 9150 trunks to ring specific stationsThe local call appearance keys must be left undefined in the host PBXconfiguration to avoid indicator conflicts between the host PBX and the RemoteGateway 9150 unit. Only indicators defined as local call appearances areblocked from the host PBX.Any active Single Call Ringing (SCR)/Single Call No-ringing (SCN) key causesthe Remote Gateway 9100 Series unit to allocate DSP and WAN bandwidth forthat port. This supports a privacy over-ride feature available with the SCR/SCNkey. To avoid using unnecessary bandwidth, Nortel recommends that you useMultiple Call Ringing (MCR)/Multiple Call No-ringing (MCN) keys forMultiple Appearance Directory Number (MADN) appearances at remote sites.When to configure the local call appearance keysThe local call appearance key positions must be defined when a new station isbeing configured with local capability, or when a request to change feature keypositions has been initiated.Dial tone delayTelephone sets connected to Remote Gateway 9150 units can experienceunexpectedly long dial tone delay. Specific delays depend on the number ofassociated MADN appearances and the system activity at the time the call isattempted. If you configure more than five to six MADNs on a single RemoteGateway 9100 Series system, the signaling can become delayed and result insporadic ringing.Note: This applies to all SCR, SCN, MCR, and MCN keys.
