events that occur on the trunk, including seizure, wink, and answer.
tones such as ringing or busy and announcements such as "no longer in service".
digits dialed or called party number that can be system -specific or variant-specific.
1) Address Signaling:
2) Supervisory Signaling:
3) Informational Signaling:
Answer:
1) Address Signaling: digits dialed or called party number that can be system -specific or variant-specific.
2) Supervisory Signaling: events that occur on the trunk, including seizure, wink, and answer.
3) Informational Signaling: tones such as ringing or busy and announcements such as "no longer in service".
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