Web. May 20, 2021 · Fortunately, there are a lot of ways to get a phone number for a minute or two, or for even longer. Here are several options to get a temporary number, quickly and for free. Google Voice. Google Voice is a web-based telephone service from Google that provides users with a new phone number that can be used for voice calls and messaging.. Most Phone System features are the same regardless of the PSTN connectivity option you choose. For example, call unanswered and forwarding settings, call transfer, custom music on hold, call park, shared line, and voice apps are all available. For a complete list of Phone System features, see Here's what you get with Phone System. In the gateway scenario, an Internet telephony gateway connecting a packet voice network to the PSTN recreates the DTMF tones or other telephony events and injects them into the PSTN. Since, for example, DTMF digit recognition takes several tens of milliseconds, the first few milliseconds of a digit will arrive as regular audio packets..