ZyXEL P-202H User Guide - Page 172
ISDN Setup
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P-202H Plus v2 User's Guide Please note that the PABX prefix is for calls initiated by the ZyXEL Device only. If you place a call from a device on either A/B adapter, you must dial the prefix by hand. 17.1.4 Outgoing Calling Party Number If these fields are not blank, the ZyXEL Device will use these values as the calling party number for "ISDN Data", "A/B Adapter 1" and "A/B Adapter 2" outgoing calls. Otherwise, the individual entries for "ISDN Data", "A/B Adapter 1" and "A/B Adapter 2" will be used as the calling party number. You only need to fill in these fields if your switch or PABX requires a specific calling party number for outgoing calls, otherwise, leave them blank. The following diagram illustrates the PABX Number (with S/T Bus Number) for Loopback and Outgoing Calling Party Number fields for a ZyXEL Device behind an ISDN PABX. Figure 77 ZyXEL Device Behind a PABX 17.2 ISDN Setup From the main menu, enter 2 to open menu 2. 171 Chapter 17 Menu 2 ISDN Setup
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