Panasonic KX-NCP500 Features Manual page 406

1.31.2 SIP (Session Initiation Protocol) Extension
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When a SIP extension uses the Call Hold feature, the target call is put on Consultation Hold.
[SIP Video Phone]
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When making a SIP video phone call, call features such as Call Transfer are not available.
Installation Manual References
KX-NCP500/KX-NCP1000
3.4.1 Virtual Cards
KX-TDE100/KX-TDE200
3.4.1 Virtual Cards
KX-TDE600
3.4.1 Virtual Cards
PC Programming Manual References
3.17 [1-1] Slot—Card Property - Virtual SIP Extension
3.18 [1-1] Slot—Port Property - Virtual SIP Extension Port
3.19 [1-1] Slot—Port Property - Virtual SIP Extension Port—Connection Command
406 Feature Guide