A method for supporting rescue channels in a communications system. The
rescue channel feature supports the use of pre-allocated radio resources
at neighboring BSs 104, 106 in order to attempt to recover a voice call
in danger of being dropped. The MS 114 disables its transmitter upon
detection of a loss of forward frames from the network. Once the source
BS 102 detects a loss of transmission from the MS 114, it may attempt to
re-establish communication with the MS 114 by performing soft handoff
additions to rescue cells at neighboring BSs. The neighboring BSs are the
MS's neighbor list, last reported Extended Pilot Strength Measurement
Message (EPSMM), and possibly other factors.