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4.1 Public Network Features
4.1.1 SIP (Session Initiation Protocol) Trunk
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.
PC
LAN
(Local Area Network)
WAN (Wide Area Network)
Internet
Local
Telephone
IP-PT
ISP
ITSP
Router
Built in
Router
*1
Switching
Hub
V-SIPGW16
PBX
*1
When the PBX is connected to an ISP and the built-in router is used, the router connected to the switching hub is not required.
Conditions
•
A subscription with an ISP is required for an Internet connection.
•
A subscription with an ITSP is required for a telephone connection. The ISP and ITSP may be part of the
same company.
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Feature Guide
4.1.1 SIP (Session Initiation Protocol) Trunk
Summary of Contents for KX-NS1000
Page 14: ...14 Feature Guide Table of Contents...
Page 15: ...Section 1 For Your Safety Feature Guide 15...
Page 18: ...18 Feature Guide 1 1 1 For Your Safety...
Page 19: ...Section 2 Call Handling Features Feature Guide 19...
Page 278: ...278 Feature Guide 2 28 2 Outgoing Message OGM...
Page 279: ...Section 3 Unified Messaging System Feature Guide 279...
Page 335: ...Section 4 Network Features Feature Guide 335...
Page 434: ...434 Feature Guide 4 3 6 Network ICD Group...
Page 435: ...Section 5 System Configuration and Administration Features Feature Guide 435...
Page 521: ...Section 6 Appendix Feature Guide 521...
Page 540: ...540 Feature Guide 6 5 4 PCMPR Software File Version 003 2xxxx...
Page 541: ...Feature Guide 541 Notes...