ZyXEL Communications P-2602HWLNI, User Manual, Page: 209 / 496

Chapter 11 Voice
P-2602HWLNI User’s Guide
209
• They configure their MSN mappings in the ZyXEL Device’s VoIP > Fixed Line
Numbers screen. Carol maps MSN1 to “333” and David maps MSN2 to “222”.
• They then configure the VoIP > Phone > Analog Phone screen so that the PHONE 1 port
uses the ISDN line and MSN1 to make and receive calls, and the PHONE 2 port uses the
ISDN line and MSN2 to make and receive calls.
When someone calls 987654333, only Carol’s phone rings, and when someone calls
987654222 only David’s phone rings.
"
You must enter a prefix number in your phone’s keypad if you want to make
outgoing ISDN calls. Use the
VoIP > ISDN Line screen to configure this prefix
number (see Section 11.22 on page 207 ).
11.23.2 Receiving Analog Calls With Digital Phones
The ZyXEL Device enables you to receive analog (PSTN) calls with a digital (ISDN) phone as
follows.
1 Connect an ISDN phone to the ISDN PHONE port.
2
Click VoIP > Fixed Line Numbers .
3 In the PSTN section, enter a number in the Number field (15 digits or fewer, no spaces
or dashes allowed). This number must be different from any MSNs you configure in this
screen. Click
Apply .
4
On your ISDN phone, set the same number that you configured in the Number field as
the MSN. Refer to the documentation supplied by your phone’s manufacturer for details.
Now, when your ZyXEL Device receives an analog (PSTN) call, your ISDN phone rings.
11.23.3 Configuring the Fixed Line Numbers Screen
Click VoIP > Fixed Line Numbers . The following screen displays.