Techniques for variable length talk permit tone are provided. a request to initiate a Push-to-Talk (PTT) call may be received from a PTT call initiator. A first estimated length of time needed to set up resources for the PTT call may be determined. A second length of time to playout a talk permit tone (TPT) may be determined based on the determined first estimated length of time. An indication may be sent to the PTT call initiator to playout the TPT for the determined second length of time.

Systems and methods for reducing audio delay for mixed mode delivery of audio transmissions. One example system includes a communication interface communicatively coupled to a communication network, and an electronic processor. The electronic processor is coupled to the communication interface, and configured to receive, via the communication interface, a group call request for a talkgroup. The electronic processor is configured to transmit, in response to receiving the group call request, a call grant message to a plurality of subscriber units affiliated with the talkgroup. The electronic processor is configured to determine, using a machine learning algorithm, a subset of the plurality of subscriber units based on a call grant response time, and, while a transmission hold-off timer has not expired, when a call grant response has been received from each of the subscriber units of the subset, forward an audio transmission to the subset based on the group call request.

A method for optimizing group communication services, the method including determining a current location and an assigned home server for one or more devices associated with each of a plurality of group members, determining whether the one or more devices of the plurality of group members has moved to a visiting location, wherein the visiting location is a location outside of locations associated with the assigned home server based on the current location and assigned home server for the one or more devices, and assigning a group control application server associated with the visiting location to the to the one or more devices to serve as the assigned home server.

A method is provided that allows for prioritizing Push-To-Talk (PTT) service in a roamed network. PTT service is enabled for a mobile device at a first network. The mobile device roams to a second network that is of an older generation than the first network. It is determined that the mobile device has an active PTT subscription. PTT service is prioritized for the mobile device over circuit switched services on the second network.

A method is provided that allows for prioritizing Push-To-Talk (PTT) service in a roamed network. PTT service is enabled for a mobile device at a first network. The mobile device roams to a second network that is of an older generation than the first network. It is determined that the mobile device has an active PTT subscription. PTT service is prioritized for the mobile device over circuit switched services on the second network.

Provided are methods and apparatuses for prioritizing Mission Critical Push to Talk Traffic during an emergency, related to wireless communication networks, and more particularly to mission critical services in Long Term Evolution (LTE) communication networks. A channel sensitive MCPTT prioritization scheduling method and system are provided to increase the download/upload. speeds for MCPTT users during the emergency situations. Also provided are methods and systems for prioritizing traffic for connected User Equipments (UEs) over idle UEs.

Provided are methods and apparatuses for prioritizing Mission Critical Push to Talk Traffic during an emergency, related to wireless communication networks, and more particularly to mission critical services in Long Term Evolution (LTE) communication networks. A channel sensitive MCPTT prioritization scheduling method and system are provided to increase the download/upload. speeds for MCPTT users during the emergency situations. Also provided are methods and systems for prioritizing traffic for connected User Equipments (UEs) over idle UEs.

A method for enabling Mission Critical Push to Talk (MCPTT) services in a telecommunications network is presented. The method is performed by a mobile terminal (MT) and incudes receiving an imminent peril or emergency MCPTT call from at least one other MT, the call indicating an emergency state for the at least one other MT, determining a number of MTs indicating an emergency state, and raising an MCPTT emergency alert if the determined number of MTs indicating an emergency state exceeds a threshold. An MT, an escalation server, a computer program, and a computer program product are also presented.

A method for enabling Mission Critical Push to Talk (MCPTT) services in a telecommunications network is presented. The method is performed by a mobile terminal (MT) and incudes receiving an imminent peril or emergency MCPTT call from at least one other MT, the call indicating an emergency state for the at least one other MT, determining a number of MTs indicating an emergency state, and raising an MCPTT emergency alert if the determined number of MTs indicating an emergency state exceeds a threshold. An MT, an escalation server, a computer program, and a computer program product are also presented.

A method and a mobile terminal are provided in which a first user interface is provided by which a user selects a first setting indicating whether still images stored in the mobile terminal are to be stored in a web server. A second user interface is provided by which the user selects a second setting indicating whether the still images are to be transmitted to the web server via a wireless local area network (LAN) if the mobile terminal enters a wireless LAN service area. If the second setting indicates that the still images are to be transmitted if the mobile terminal enters the wireless LAN service area, the still images are transmitted to the web server via the wireless LAN if the mobile terminal enters a service area of the wireless LAN.