ZyXEL ISG50-PSTN User Guide - Page 154

Chapter 8 PBX Tutorials 3 You can now use the telephones that are part of the Basic authority group to make long distance calls using the ITSP connection. The following figure summarizes the outbound call process for this example. Caller dials 1212555555 The ISG50 matches this number with the long_distance_call LCR, applies the offset (strips off the 1), adds the prefix 016 to the start of of the number and routes the call to ITSP. ISG 1001 The ISG50 sends the call 016212555555. The ITSP applies the dialing plan rate and sends the call to 212555555. ITSP 212-555-555 8.5 Making ISDN Calls The following section shows you how to make and receive calls via a connection to the ISDN. This example covers: • The ISDN Connection - configuring the outbound line group's connection settings from the BRI interface to the ISDN. • Creating a Dialing Rule for ISDN - creating a rule which tells the ISG50 when to use the ISDN connection when completing outbound calls. • Assigning an LCR to an Authority Group - giving extensions the right to make outbound calls via the ISDN connection. Figure 122 Making an ISDN Call Caller dials 8005555555 1000 The ISG50 matches this number with an LCR, routes the call to ISDN. ISBGRI ISDN 8005555555 154 ISG50 User's Guide