An address message is a fundamental control packet used in telecommunications signaling systems, such as SS7, to initiate a connection. It travels forward through the network from the originating switch to the destination switch. The message contains critical routing data, including the dialed digits, the caller's identity, the requested service class, and the specific trunk circuits to be used for the audio path.
Check the trace on the signaling link; the initial address message is going out, but the destination switch is rejecting the routing digits.
Also heard as
- Initial Address Message
- IAM
Related terms
Out-of-band signaling
A telecommunications method where control signals travel on a different channel than the voice or data traffic.
PSTN
The global infrastructure of circuit-switched telephone networks operated by national and regional carriers.
Exchange
A physical building or the specific set of telephone numbers routed through it.