Optimizing mobile terminated/mobile initiated call legs

A method of providing voice services at mobile devices, comprising:

• determining availability of an incoming voice call to a mobile device;
• accessing stored historical call disposition information from a computer readable medium, including information relating to dispositions of prior voice calls related to the incoming voice call;
• before the incoming voice call is disposed of at the mobile device, predicting whether the incoming voice call will be answered, as a disposition, at the mobile device, based on the historical call disposition information;
• responsive to predicting that the disposition of the incoming voice call will be that the incoming voice call will be answered at the mobile device, beginning establishment of a voice channel for the mobile device to use while participating in the incoming voice call, if actually accepted, before the mobile device receives input indicative of the actual disposition of the incoming voice call;
• and
• responsive to predicting that the disposition of the incoming voice call will be that the incoming voice call will not be answered, beginning establishment of an outgoing voice channel from the mobile device for completing the incoming call, after the mobile device receives the input indicative of the actual disposition of the incoming voice call, and determines that the input indicates acceptance of the incoming voice call.