Patent ID: 8565078

Claim:
A method, comprising: maintaining, by a first device, a call history log related to previous calls made by subscriber terminal units via a second device, identifying, by the first device and based on maintaining the call history log, a period of call inactivity of a subscriber terminal unit, of the subscriber terminal units, with respect to the second device; retrieving, by the first device and based on identifying the period of call inactivity of the subscriber terminal unit, a portion of the call history log related to one or more of the previous calls, the one or more of the previous calls being made by the subscriber terminal unit via the second device, transmitting, by the first device and to the second device, a first request for reserving connection resources for a subsequent call, associated with the subscriber terminal unit, based on identifying the period of call inactivity of the subscriber terminal unit, the first request being sent prior to receiving, from the subscriber terminal unit, a second request to connect the subsequent call, and the connection resources being reserved using information included in the portion of the call history log; and transmitting, by the device and based on receiving the second request from the subscriber terminal unit to connect the subsequent call, a third request to the second device, the third request instructing the second device to use the connection resources to connect the subsequent call.