Panasonic KX-TDE100 manual Information about IP Telephony Service, V-SIPGW16 Connection Outline

1.1 Information about IP Telephony Service

1.1 Information about IP Telephony Service

The Virtual 16-Channel SIP Trunk Card (V-SIPGW16) is a virtual trunk card which is designed to be easily integrated into an Internet Telephony Service provided by an ITSP (Internet Telephony Service Provider).

As a major SIP 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), another major SIP Provider, does not provide 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. The maximum of two V-SIPGW16 cards can be installed to the virtual trunk slots of the PBX. Therefore, the channel capacity of the card allows users to connect to up to 32 each different ISP/ITSPs.

V-SIPGW16 Connection Outline

The following diagram illustrates a simple VoIP network connecting the V-SIPGW16 card to the Internet.

WAN (Wide Area Network)

Internet

ITSP

Local

Telephone

ISP

LAN	Router
(Local Area Network)

Switching

Hub

PC IP-PT

PBX with

V-SIPGW16 Card

Requirements for Internet Telephony Service

•You need to subscribe with an ISP for Internet connection.

•You need to subscribe with an ITSP for telephone connection. The ISP and ITSP may be part of the same company.

Note

•VoIP communication using the V-SIPGW16 card may deteriorate depending on the ITSP being used.

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Programming Manual for Virtual SIP Trunk Card