Enabling IP PBX with ISDN2/30 for SIP Trunks
Organizations that have already invested in an IP-PBX, should know that your phone system is ready to use SIP instead of IDSN.
With SIP trunks you will be cutting down on call costs dramatically. IP connections are cheaper than traditional ISDN lines in terms of rental costs. In some cases it is possible to get free UK landline calls using SIP trunking, and much cheaper mobile calls, with significant savings applicable to international calls also. Pricing is clearly structured and transparent, and SIP trunking does not generally have any hidden costs associated.
How does it Work?
A SIP trunk will connect your premises directly to the Public Telephone Network (PSTN) via IP/broadband.
Your IP PBX will connection to the Internet.
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