A KX-NT300 series IP-PT can automatically connect to a secondary PBX, when the primary PBX becomes
disconnected.
Installation Manual References
KX-TDA50
2.4.8 IP-EXT4 Card (KX-TDA5470)
KX-TDA100/KX-TDA200
2.5.8 IP-EXT16 Card (KX-TDA0470)
KX-TDA600
2.7.8 IP-EXT16 Card (KX-TDA0470)
PC Programming Manual References
3.22 [1-1] Slot—Card Property - IP Extension
3.24 [1-1] Slot—Port Property - IP-Extension Port
9.1.16 ISDN (INTEGRATED SERVICES DIGITAL NETWORK)FEATURES
Description
Integrated Services Digital Network (ISDN) is a digital switching and transmission network. ISDN transmits
voice, data, and image in digital format. ISDN lines can be connected to public lines (CO lines), private lines
(QSIG).
ISDN Service features are only available for KX-TDA100, KX-TDA200, and KX-TDA600.
1. ISDN Interface and Configuration
Interface Type Description Port Mode
Primary Rate Interface
(PRI)
Provides twenty-three 64 kbps B channels for
communication and one 64 kbps D channel for
signaling (23B + D).
CO Line, QSIG—
Master, QSIG—
Slave*1
*1 3.14 [1-1] Slot—Port Property - PRI Port (KX-TDA100/KX-TDA200/KX-TDA600 only)—Main—Port
2. ISDN Supplementary Services for Public Network
Service Description Details in
Direct Inward Dialing
(DID)
Directs a call with a DID number to the
preprogrammed destination.
® 4.1.5 DID (Direct
Inward Dialing)
172 Feature Manual Document Version 2008-11
9.1.16 ISDN (INTEGRATED SERVICES DIGITAL NETWORK) FEATURES