What is in-band signaling? - Definition from Whatis.com

Definition

in-band signaling

In the public switched telephone network, (PSTN), in-band signaling is the exchange of signaling (call control) information on the same channel that the telephone call itself is using. Today, most long-distance communication uses out-of-band signaling as specified in various Signaling System 7 (SS7) standards.

This was last updated in January 2000

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