SJG XN120 connects to the PSTN whether by traditional analogue or ISDN lines or via 'new' leading edge such as IP
| Cost Effective Solutions for delivering advanced IP Communications | ||
| Voice over IP (VoIP) is technology used to
integrate your NEC Telephone System with your data network, meaning you
can utilise spare bandwidth on your existing networks to make low cost
telephone calls
The technology used for VoIP is based on international standards with
the most common standard being Session Initiation Protocol (SIP)
enabling a business to reduce telephony costs, All NEC Infrontia telephone systems now support the latest version of SIP. This means that there are many connectivity options available to NEC Infrontia customers |
||
![]() |
||
| SIP Extensions The XN120 allow SIP telephones to register as an extension. This means that the SIP Telephone can have an extension number and users can make and receive calls in the same way that they would use an ordinary analogue phone. There are many SIP devices available for example: By utilising the SIP networking capability, it is possible to network up to 1000 Aspire and XN120 Telephone systems together. In some cases, it is even possible to integrate other SIP compliant or legacy PBX’s into the VoIP network. Therefore, businesses with several offices or sites can telephone each other Free of Charge Another advantage of SIP networking is the ability to have a unified numbering plan. The advanced call routing capability of the Aspire and the XN120 allows the VoIP network to be numbered in such a way that users can dial ‘’desk to desk’’, so a user is able to use extension numbers rather than the full number when calling another branch or site |
SIP Trunks SIP Trunks are alternatives to traditional ISDN and Analogue trunks as they operate using Internet connections rather than physical lines thus as the call is placed over the Internet it is possible to make long distance, even international calls at a fraction of the price Another advantage of SIP trunks is that they are not limited geographically, so you could have an NEC Telephone system in London, yet have a New York or Tokyo telephone number and external calls would be appear to be made form these cities! Whilst SIP is the most widely used and flexible VoIP protocol, there are small differences in the way manufacturers implement the SIP ‘standards’. For this reason, it is necessary to perform interoperability with the SIP services and hardware to insure that there are no serious issues |
|
SJG - all your NEC XN120 needs
Click here to Go to the SJG NEC XN120 site
Click here to Go To The User Guide Menu Page
|
|
|||||