AP72-01 Page 12 Issue 6
S122
Primary B channel incoming
This allows the user to select the channel or channels for which an incoming call will be
presented. This will be the first element of an incoming call that will be checked . If the check
fails the call will be ignored otherwise the call will be passed to the nest filtering section. This
is primarily of use when the ISDN connection has two directory numbers assigned, one to each
channel. Then two or more pieces of equipment can share the network and answer only the
calls specifically addressed to it.
Parameters:
0 - Any channel
1 - B1 channel only
2 - B2 channel only
