WorldNet SIP Trunk Service

What is a SIP Trunk?

A SIP (Session Initiation Protocol) connection is a service offered by many ITSP (Internet Telephony Service Providers) that connects a company's PBX to the existing telephone system infrastructure (PSTN) via Internet using the SIP VoIP standard.

Using a SIP connection may simplify administration for the organisation as the SIP connection typically will use the same Internet connection that is used for normal data.

This removes the need to also have a BRI/PRI installed as well, although sharing the same bearer circuit for calls and data raises its own challenges in maintaining call quality.

If the call traffic runs on the same connection with other traffic like Email or Web, voice and even signalling packets may be dropped and the voice stream can get interrupted.

To mitigate this, WorldNet always recommends that customers split voice and data up into two separate internet connections to solve this problem, so that the resource conflict on the Internet access side is avoided. Other devices perform traffic shaping in order to avoid this resource conflict, but they still depend on the merit of the service provider not to drop packets from the Internet to the PBX.

Users should also be aware that a SIP connection can be used as a channel for attacking the company's internal networks, similar to Web and Email attacks. This is Why WorldNet will not just supply the SIP Trunk connectivity, we will also make sure that customers are aware of the dangers, and if they wish,  we can advise on the best solution for  installing appropriate security mechanisms to prevent malicious attacks.


The most important Benefits of a WorldNet SIP Trunk :

-  Quick and easy to Setup

-  Cheaper than an ISDN2 installation

-  Much Cheaper Monthly Line Rental

-  Existing PSTN, ISDN Lines can be Ported. so if a customer relocates and wished to retain an existing Number they might have had for many years, with SIP they can

-  Flexible Numbering. This gives the customer the flexibility to work from anywhere in the Country and use any local number they wish. (a Company in London can setup a
Manchester Number over the SIP Trunks, thereby targeting clients in the Manchester).
-  Customers with multiple office locations can enjoy FREE calls between sites over the SIP Trunks.

-  Fully scallable. customers can start with as little as 1 channel.

-  Compatible with Many IP PBX Manufacturer. (please contact us for a full List).

-  Analogue Adaptors are also available to enable the Connection of SIP Trunks onto Analogue equipment.(WorldNet Does not supply the Adaptors, but can recommend).


  
Please Call us Now for more details or to speak to one of our Technical advisers 

 
 

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