Panasonic KX-TDA100D Features Manual page 360

1.31.1 IP Proprietary Telephone (IP-PT)
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Automatic Rerouting to Secondary PBX
A KX-NT300 series IP-PT can automatically connect to a secondary PBX, when the primary PBX becomes
disconnected.
Installation Manual References
2.5.5 IP-EXT16 Card (KX-TDA0470)
PC Programming Manual References
3.35 [1-1] Slot—Card Property - IP Extension
3.37 [1-1] Slot—Port Property - IP-Extension Port
360 Feature Guide