Patent ID: 9002364
Filing Date: 2015-04-07
Classification: H04M,H04W

Abstract:
1. A method of terminating calls to a mobile terminal, comprising: receiving a call request directed to the mobile terminal; determining the mobile terminal is currently terminated with an in-progress first call; determining the mobile terminal is available to accept a second call; identifying a different carrier frequency that has more time slots available than a carrier frequency allocated to the first call; setting up the second call with the mobile terminal while the first call is maintained in progress, wherein the second call is setup by allocating a time slot of the different carrier frequency that is different from the carrier frequency allocated to the first call; wherein the first call is allocated on a first carrier frequency; determining the first carrier frequency has no time slots available for another call; identifying a second carrier frequency that has a plurality of available time slots; and performing an intra-cell handover of the first call from the first carrier frequency to the second carrier frequency.