Abstract:
A method for enabling group communications includes: establishing a group identity for a communication group comprising a first set of communication devices, and storing an identity for each of the communication devices in the first set; establishing a session to associate a second set of communication devices with the group identity, wherein the communication devices in the second set are different from the communication devices in the first set, wherein the session with the second set of communication devices is set up irrespective of a call being initiated for the communication group; detecting a first event associated with the initiation of a call for the communication group; and in response to detecting the first event, using the stored identities to join at least one of the communication devices in the first set to the session.
Abstract:
A received synchronization pattern is compared against first and second known synchronization patterns. If the received pattern is substantially similar to the first known pattern, the payload is processed as voice; and if the received pattern is substantially similar to the second known pattern, the payload is processed as non-voice. Alternatively, a target synchronization pattern dependent on an operating mode is selected. The received pattern is compared against the target pattern. If the received pattern is substantially similar to the target pattern, the payload is processed; otherwise, the burst is discarded. In yet another alternative, the received pattern is compared against first and second known synchronization patterns having a common length. If the received pattern is substantially similar to the first known pattern, a first operating mode is selected, and if the received pattern is substantially similar to the second known pattern, a second operating mode is selected.
Abstract:
A received synchronization pattern is compared against first and second known synchronization patterns. If the received pattern is substantially similar to the first known pattern, the payload is processed as voice; and if the received pattern is substantially similar to the second known pattern, the payload is processed as non-voice. Alternatively, a target synchronization pattern dependent on an operating mode is selected. The received pattern is compared against the target pattern. If the received pattern is substantially similar to the target pattern, the payload is processed; otherwise, the burst is discarded. In yet another alternative, the received pattern is compared against first and second known synchronization patterns having a common length. If the received pattern is substantially similar to the first known pattern, a first operating mode is selected, and if the received pattern is substantially similar to the second known pattern, a second operating mode is selected.
Abstract:
A message transmission queue (300) including a high priority queue (HPQ) (301) having a high priority entry point; a medium priority queue (MPQ) (303) having a medium priority entry point; and a low priority queue (LPQ) (305) having a low priority entry point. Messages in the MPQ (303) are queued after all messages in the HPQ (301). Messages in the LPQ (305) are queued after all messages in the MPQ (303). A sequencer reinserts messages into the queue (300) based on the message repeat count and the message's previous queue position.
Abstract:
In a communications system having a plurality of endpoints (240, 242, 246) each including a logical entity and its physical counterpart, a system for controlling and managing session between at least two endpoints. The system including a registration manager (202), an application layer router (204), a session controller (206), a group database manager (208), and at least one group entity (210).
Abstract:
In a communications system having a plurality of endpoints each including a logical entity and its physical counterpart, a method of group affiliation. The method including the steps of: receiving a first message from a requestor via application layer routing that includes an affiliation request (602); generating a response to the affiliation request as a function of the type of affiliation request received (604); and communicating the response to the affiliation request to the requestor via application layer routing (606).
Abstract:
A system and method for receiving data and control messages comprised of a series of data units is provided. The data units comprising each message are structured to follow a particular sequence, such as zero or more data units of a first type followed by one or more data units of a second type, which may then followed by data units of one or more other predetermined types. Upon receiving a data unit of a first or second type, a number of "units to follow" is determined from information provided in the received data unit. A number of subsequently received data units are then forced to be processed as one of the first type, the second type, or other predetermined type in accordance with the known structure of the message. The number of subsequently received data units that are forced to be processed as one of these types is based on the determined number of units to follow.