Sip (Session Initiation Protocol) Co Line - Panasonic KX-NS700 Feature Manual

18.1.3 SIP (Session Initiation Protocol) CO Line

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Before a SIP extension can be used with the PBX, the IP address of the mother board, password, and
extension number must be assigned on the SIP extension and on the PBX. Even if the IP terminal
registration mode has been set to full automatic mode or extension input mode, general SIP extensions
must be registered manually.
For details on how to register, refer to the Installation Manual.
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When registering the SIP extension, the user ID must be the extension number of the SIP extension.
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When a SIP extension uses the Call Hold feature, the target call is put on Consultation Hold.
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DSP Resource Usage
Making a call from a SIP extension requires a certain number of DSP resources, depending on the codec
used. If all DSP resources are in use, this operation cannot be performed. To ensure a minimum level of
performance, DSP resources can be reserved for VoIP communication. (→ 5.1.18 DSP Resource Usage)
However, DSP resources are not required for P2P calls. (→ 15.1.6 Peer-to-Peer (P2P) Connection)
Installation Manual References
4.4 Virtual Cards
PC Programming Manual References
9.15 PBX Configuration—[1-1] Configuration—Slot—Card Property—V-SIPEXT
9.16 PBX Configuration—[1-1] Configuration—Slot—Port Property—V-SIPEXT
18.1.3 SIP (Session Initiation Protocol) CO Line
Description
Through a V-SIPGW card, the PBX can connect to an Internet telephony service provided by an ITSP
(Internet Telephony Service Provider).
An ITSP provides its telephony service partly through the conventional telephone network (e.g., ISDN and
Mobile), which is fee-based. An ISP (Internet Service Provider), which can also act as a SIP provider, does
not provide the telephone connection itself. However, providing its users with Internet access, an ISP
provides voice communication on the Internet for free. In this way, with VoIP technology based on the SIP
protocol, the cost of voice communication can be much cheaper than conventional telephone networks.
336 Feature Manual Document Version 2017-06