![]() ![]() For residential markets, voice over IP phone service is often cheaper than traditional public switched telephone network (PSTN) service and can remove geographic restrictions to telephone numbers, e.g., have a PSTN phone number in a New York area code ring in Tokyo.įor businesses, VoIP obviates separate voice and data pipelines, channelling both types of traffic through the IP network while giving the telephony user a range of advanced abilities. ![]() This is a comparison of voice over IP ( VoIP) software used to conduct telephone-like voice conversations across Internet Protocol (IP) based networks.
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