Zhone Technologies 600 - Manual (Page 183)

Server Cards 6-33
ACS-PRI/BRI Card Configuring ISDN Features
6.4.9 Routing of Incoming Calls
Call routing in the system is described in the introduction section of this chapter. Assignment
of phone numbers for routing calls between D channels is done from the routing subscreen.
Figure 6-20 shows the ISDN routing subscreen. It is accessed from the D channel
configuration screen by pressing “o” (lowercase letter o).
Figure 6-20. Routing Numbers Screen
Each D channel may be assigned two ten-digit phone numbers to be used for routing calls
addressed to those phone numbers. The use of the wild card letter “x” means any digit will
match. Note that D channel routing occurs only after all attempts to route a call to an HSU port
are unsuccessful.
If local routing is disabled (Route Local = no), any call coming into the system on a network
side (i.e., local) D channel will be routed only to a user side D channel based on the called
number. Even if the called number matches, such a call will never be routed to an HSU port
or a network side D channel when local routing is disabled.
The routing table should always contain the default number "xxxxxxxxxx" (10 Xs) to make
sure that all dialed numbers are routed to the network.