Abstract: The technology disclosed herein enables an improved communication dialer system that uses a calling-party identifier having previous association with a called party to request a communication session with that called party. In a particular embodiment, a method provides identifying a called party for a first communication session and determining a first calling-party identifier from a plurality of calling-party identifiers available to the communication dialer for establishing the first communication session with the called party. The first calling-party identifier was previously used in association with a communication session with the called party. The method further provides directing the communication dialer to request the first communication session with the called party using the first calling-party identifier.

Abstract: A new Clear Reject message (or, equivalently, a new cause value indicating “Call on Hold” for the Clear Command) is defined for IS-2001 wireless communications to prevent resource deallocation prior to re-paging of a mobile station terminating connections with a call on hold. In response to receiving the new message from a mobile switching center, the serving base station maintains resource allocations for the mobile station and notifies the mobile station of the holding call, causing a ring tone to sound at the mobile station. State transition and paging channel monitoring by the mobile station, use of paging resources by the mobile switching center, and resource tear-down and reassignment by the base station are all avoided.