Internet telephony service provider

An Internet telephony service provider (ITSP) offers digital telecommunications services based on Voice over Internet Protocol (VoIP) that are provisioned via the Internet.

ITSPs provide services to end-users directly or as whole-sale suppliers to other ITSPs.

单词	Internet telephony service provider
释义	Internet telephony service provider 英语百科 Internet telephony service provider An Internet telephony service provider (ITSP) offers digital telecommunications services based on Voice over Internet Protocol (VoIP) that are provisioned via the Internet. ITSPs provide services to end-users directly or as whole-sale suppliers to other ITSPs.
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