Instruction manual

FEATURES AND SERVICES
End-To-End Signaling
Description
This feature allows multiline voice terminals to send touch-tone (DTMF) signals over the DDD
network and allows single-line and multiline users to send touch-tones over dial pulse trunks.
The 7300H series voice terminals do not generate touch-tones when a dial pad button is
pressed. The End-to-End Signaling feature provides for the conversion of signals generated
by these terminals to touch-tones.
Dialed numbers from multiline voice terminals are toned out for a default duration of 60 ms
followed by 60 ms of silence (administrable). Dialed numbers to single-line voice ports are
toned out for a default duration of 60 ms followed by 60 ms of silence (administrable).
When using dial pulse trunks, End-to-End signaling is invoked by dialing “#” after the last
digit of the called number or waiting for about 10 seconds after dialing the last digit (see the
Interdigit Timeouts feature description).
All subsequent dial pad button presses generate
touch-tones on the outside line.
Considerations
End-to-End Signaling permits stations to access network services that require touch-tone
signals.
Interactions
The following features interact with End-To-End Signaling.
Command Mode And Data Terminal Dialing: occasionally it is necessary to send additional
tones to the remote endpoint after a data connection has been established. A mark
character
“$” is embedded in the dialing sequence to indicate to call processing that
additional tones must be sent prior to insertion of a conversion resource (pooled modem)
into the connection. The mark character “$” is used to indicate that all the following digits
are for end-to-end signaling. This character is used to mark the boundary between the digits
dialed to reach the distant endpoint and the digits used by the distant endpoint after it
answers.
Repertory Dialing:
Repertory Dialing can be programmed on the 7300H series voice
terminals. End-to-End Signaling works properly with this feature.
Speed Dialing: #8 must be stored to start End-to-End Signaling
Virtual Facilities: #8 must be stored to start End-to-End Signaling.
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