Modem Tone Detection and Signaling
Modem broadcast supports V.34 accentuation and the V.42 absurdity alteration and articulation band protocol
with best alteration ante of up to 33.6 kbps. It armament higher-rate modems to
train bottomward to the accurate rates. Signaling abutment includes the SIP, MGCP, and H.323:
■ For MGCP and SIP, during the alarm setup, gateways accommodate these items:
■ To use or not use the modem broadcast mode
■ To use or not use the aperture barter identification (XID)
■ The amount of the burden blazon for Named Signaling Event (NSE) packets
■ For H.323, the gateways accommodate these items:
■ To use or not use the modem broadcast mode
■ To use or not use the aperture XID