Panasonic NS1000 Manual page 127

6-1. Registration – Other Terminals
Other Terminals such as:
• KX-NT700 (Conferencing Unit)
• TCA/WT Series DECT Terminals
• 3rd Party SIP Telephones
Must all be registered using 'Manual' Registration mode.
Notes:
For KX-NT700 and 3rd Party SIP Telephones – ensure a V-SIPEXT32 (inc A/Ks) is installed.
DECT Handsets (TCA/WT) are registered in the same manner as TDE/NCP PBX systems.