ITSL Business IT announce a partnership with the leading Voice Over IP (VOIP) software provider 3CX. The award winning 3CX software is easily installed, managed and scaled - when connected to SIP gateways, existing standard analogue or digital lines can easily be integrated within a system and made available across multiple sites.

Integration of SIP trunks with the 3CX PBX system allows calls to be made via IP over the internet, meaning lower call costs and virtually no line rental.

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