摘要:
A method for establishing a packet switched call at an access terminal, which is processing an established circuit switched call, enables a user to be informed that the packet switched call has been requested. The method comprises adding a call type indication to a call setup message in a serving network, where the call type indication indicates that the packet switched call is requested to be setup in a packet data radio access network in the serving network (step 1105). A message indicating that the packet switched call has been requested is then transmitted from a circuit switched base station to the access terminal (step 1115). A message indicating that the packet switched call has been accepted is then transmitted from the circuit switched base station to the mobile switching center (step 1125).
摘要:
The present invention provides a method (300) of operating a wireless communications device, and comprising identifying a wireless network for communicating with the device in response to receiving subscriber provided network identity data (315), activating a restricted use mode restricting communications between the wireless network and the device (320), receiving network provided network security data from the wireless network (330) in response to a request for the network provided network security data transmitted from the device to the wireless network (325), deactivating the restricted use mode (350) in response to determining that subscriber provided network security data corresponds to the network provided network security data (340Y).
摘要:
A method for establishing a circuit switched call at an access terminal that is processing an established packet switched call, enables a user to be informed that a voice call has been requested. The method comprises transmitting, from a visited network to the access terminal, a packet switched message indicating that the voice call has been requested (step 805). A message from the access terminal, indicating that the voice call is being processed, is then processed in the visited network (step 810). A message from the access terminal requesting a circuit switched call origination is then processed at a mobile switching center in the visited network (step 820). A message indicating that the circuit switched call should be established is then transmitted from the visited network to a voice call continuity application server in a home network, in response to the circuit switched call origination message (step 830). The circuit switched call is then connected (step 835).
摘要:
A method and system enables a conference call that includes a push-to-talk over cellular (PoC) call session and a non-PoC over cellular call session. The method includes establishing a PoC call session between a first communication device and a second communication device using a PoC server (step 705). A non-PoC call session is also established between the first communication device and a third communication device (step 710). Transcoded media data are then generated by transcoding and buffering media data received at the first communication device from the third communication device (step 715). Permission to transmit in the PoC call session is then received at the first communication device from the PoC server (step 725). The transcoded media data are then transmitted, from the first communication device to the push-to-talk over cellular server, for forwarding to the second communication device (step 730).