SIP-trunking

In addition to analogue and ISDN lines Maintel can also connect you to our voice network over SIP trunks using IP connectivity such as ADSL, SDSL or a leased line as appropriate.

SIP trunking can offer significant savings over ISDN rental charges and the benefit of free calls to other sites and remote workers using compatible Maintel services.

SIP trunks can be connected directly to an IP PBX or to any legacy telephone system via a simple IP gateway to extend its life and allow you to migrate to Voice over IP at your own pace.

Our clients are finding SIP trunks an ideal, cost-effective back-up solution to their ISDN lines and also benefiting from retaining existing telephone numbers when moving to another part of the country.