ReadyLink was a "walkie-talkie" service, which used Session Initiation Protocol (SIP), offered by the Sprint Nextel Corporation, in an effort to compete with then-separate Nextel Communications. It was necessary to have a Sanyo or a Samsung ReadyLink capable phone and a matching service-plan in order to use this feature. ReadyLink sought to mimic the forerunning "MOTO Talk"/Nextel walkie-talkie service, except that ReadyLink was created to operate on the Sprint CDMA network. It was discontinued shortly after the Sprint PCS acquisition of Nextel Communications.
