Abstract: A filtering and application triggering platform may be implemented on a signaling message routing node to decode signaling messages and increase efficiency in subsequent processing of the signaling message. A communications link module on a signaling message routing node receives a signaling message. A first filtering and application triggering module associated with the communication link module extracts predetermined parameters from the signaling message and generates a decode key based on the parameters. The first filtering and application triggering module applies a first triggering rule to the decode key and determines whether to forward or drop the message. If the first filtering and application triggering module determines that the message should be forwarded, the first filtering and application triggering module forwards the message to another processing module within the signaling message routing node. The decode key is forwarded along with the message.

Abstract: Methods and system for delivering presence information regarding push-to-talk subscribers are disclosed. In one method, a short message gateway receives presence information from a first push-to-talk subscriber from a presence or push-to-talk server. The short message gateway determines the location and availability of a second push-to-talk subscriber to which the presence information is directed. If the second push-to-talk subscriber is available, the SMS gateway delivers the presence information to the second push-to-talk subscriber in a manner that bypasses the SMSC. If the SMS gateway determines that the second push-to-talk subscriber is not available, the SMS gateway discards the presence information.

Abstract: A filtering and application triggering platform may be implemented on a signaling message routing node to decode signaling messages and increase efficiency in subsequent processing of the signaling message. A communications link module on a signaling message routing node receives a signaling message. A first filtering and application triggering module associated with the communication link module extracts predetermined parameters from the signaling message and generates a decode key based on the parameters. The first filtering and application triggering module applies a first triggering rule to the decode key and determines whether to forward or drop the message. If the first filtering and application triggering module determines that the message should be forwarded, the first filtering and application triggering module forwards the message to another processing module within the signaling message routing node. The decode key is forwarded along with the message.