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User Manual - Configuration Guide (Volume 3)
Versatile Routing Platform
Chapter 3
E1 Voice Configuration
3-10
3.2.7 Configuring the Basic Parameters of ISDN PRI Interface
If DSS1 subscriber signaling of ISDN PRI interface is adopted between the router and
the switch, the integrated transmission of voice and data is supported, in other words,
in one E1 trunk connecting the router and the switch, voice signal and data signal
occupy different B channels for transmission respectively. When the function of
integrated transmission of voice and data is adopted, it is required to configure DDR
dialing in the corresponding serial port of ISDN PRI group, so as to implement data
transmission.
After ISDN PRI group is successfully configured, the system will, on one hand,
generate the corresponding voice port of the PRI group according to the E1 port
number where the current PRI interface lies: the voice port number is “E1 port
number:15”; on another hand, the system will generate the corresponding serial port of
PRI group according to the current serial port number: the number of the new port is
“(the number of the serial port where PRI group lies + the total number of serial ports) :
15”.
After the channel-group is successfully configured, the system will create the
corresponding serial port of the channel-group automatically. The number of the new
serial port is “the number of the serial port where the channel-group lies + the total
number of the serial port)”.
Please use commands controller e1 and interface serial in global configuration mode,
and perform other configurations in E1 controller interface configuration mode.
Table VC-3-7 Configuration Commands of ISDN PRI Interface
Operation Command
Enter E1 controller interface configuration mode controller e1 port
Create channel-group for specified TS channel-group channel-group-no timeslots timeslots-list
Delete the specified channel-group no channel-group channel-group-no
Set clock source clock { line [ primary ] | internal }
Cancel clock source no clock
Configure framing mode framing { crc4 | no-crc4 }
Configure line coding mode linecode { ami | hdb3 }
Start loopback test loopback
Disable loopback test no loopback
Create PRI group pri-group [ timeslots timeslots-list ]
Delete the specified PRI group no pri-group
Enter the corresponding serial port of channel-group interface serial serial-no :channel-group-no
Enter the corresponding serial port of ISDN PRI group interface serial serial-no :15
By default,
no channel-group
(i.e. the system has not created channel-group for the
time slots initially.) command becomes effective, and
no loopback
(i.e. disable
loopback test) command becomes effective, and
no pri-group
(i.e. the system does
not create any PRI group initially.) command becomes effective.
The default value of configuration command
clock
(clock source) is line, and
framing
(framing mode) no-crc4, and
linecode
(line coding mode) hdb3.