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What to consider when chosing an ITSP

Firstly what is an ITSP? As described in our glossary, “ITSP:  Acronym for Internet Telephony Service Provider. This is a company that allows calls to and from ‘normal’ telephone numbers (PSTN)”.  Here’s a few things to think about.

Call plans – Plans maybe a cost for each call, bundled minutes, or plans for domestic / international usage. Providers offer the ability to phone free between customers in their community, is this something you’ll need?

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