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Call forwarding, or call diversion, is a telephony feature of all telephone switching systems which redirects a telephone call to another destination, which may be, for example, a mobile or another telephone number where the desired called party is available. Call forwarding was invented by Ernest J. Bonanno.
Routing in the PSTN is the process of forwarding telephone calls between the constituent telephone networks that comprise the public switched telephone network (PSTN). Telephone calls are routed across a network of potentially many switching systems, often owned by different telephone carriers. Switching systems are connected with trunks. Each ...
Remote call forwarding is also a means for a suburban business to obtain a city-centre local number (with its full large-city coverage area) for inbound calls; while cheaper than a foreign exchange line, this can reduce long-distance telephony costs in markets where local calls are flat-rated but trunk calls are expensive.
Sprint Extends Push-to-Talk Capabilities to More Phones With Downloadable Android Application Sprint Direct Connect Now makes handsets - without "the button" - push-to-talk ready OVERLAND PARK ...
The call is then transmitted from one end to another via telephone exchanges. The call is switched using a call set up protocol (usually ISUP) between the telephone exchanges under an overall routing strategy. The call is carried over the PSTN using a 64 kbit/s channel, originally designed by Bell Labs.
In January 2021, Waite called 911 to report what he believed was a trespassing incident by the sheriff and said he wanted to have the call recorded for a complaint against the sheriff.
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Sprint also had a reciprocal 1xRTT, EVDO and LTE data and voice roaming agreement with U.S. Cellular. Sprint had an LTE roaming agreement with AT&T as well, which was typically limited to 3G speeds. Several cases of Sprint phones simultaneously roaming on Verizon's CDMA network for voice and AT&T's LTE network for data were observed in 2017.