Configuring Digital E&M Signaling; Configuring A Start Mode - 3Com MSR 50 Series Configuration Manual

Configuring Digital
E&M Signaling
Configuring a Start
Mode
To do...
Enter the view of the serial
interface created for the PRI
set
Enable DSS1 or Q.SIG
signaling
Configure the signaling
protocol mode
n
For the isdn protocol-type and isdn protocol-mode commands, refer to
■
"ISDN Configuration" on page
The pri-set command is independent of the DSP resource (voice processing
■
module-VPM). When no DSP resource is available, though IP calls cannot be
placed, local TDM calls can still be placed. Therefore, you can configure this
command even if no DSP resource is available.
Similar to analog E&M signaling, digital E&M signaling also provides three start
modes: immediate-start, wink-start and delay-start. In whichever mode, the time
sequence of digital E&M signaling is the same as that of analog E&M signaling.
The only difference is that analog E&M signaling transmits signaling information
through the level change of Tip and Ring line but digital E&M signaling adopts
four bits of TS16 to transmit signaling information as what R2 signaling does.
Configuring the immediate start mode
Follow these steps to configure the immediate start mode:
To do...
Enter system view
Enter E1/T1 interface view
Create a TS set for digital
E&M signaling and select the
immediate start mode
Exit E1/T1 interface view
Enter voice view
Enter digital E&M voice
subscriber line view
Configure the delay that the
calling party must experience
before sending DTMF digits in
immediate start mode
n
For the timer dial-interval, timer wait-digit, timer ring-back, delay, and
delay send-dtmf commands, refer to
Configuring Digital E&M Signaling
Use the command...
interface serial number: { 15
| 23 }
isdn protocol-type { dss1 |
qsig }
isdn protocol-mode
{ network | user }
421.
Use the command...
system-view
controller { e1 | t1 } number
timeslot-set ts-set-number
timeslot-list timeslots-list
signal e&m-immediate
quit
voice-setup
subscriber-line
slot-numbe:ts-set-number
delay send-dtmf
milliseconds
"VoIP Overview" on page
2331
Remarks
-
Required
By default, DSS1 signaling is
enabled.
Required
By default, the protocol mode
is user.
Remarks
-
-
Required
-
-
-
Optional
300 milliseconds by default.
2243.