R2511-HP MSR Router Series Voice Configuration Guide(V5)

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Step Command Remarks
3. Bundle timeslots into a PRI
group.
pri-set [ timeslot-list range ] N/A
4. Exit E1/T1 interface view.
quit N/A
5. Enter the view of the serial
interface created for the PRI
group.
interface serial number: { 15 | 23 }
N/A
6. Enable DSS1 or QSIG
signaling.
isdn protocol-type { dss1 | qsig }
By default, DSS1 signaling is
enabled.
7. Configure a signaling
protocol mode.
isdn protocol-mode { network |
user }
The default is user.
For more information about the isdn protocol-type and isdn protocol-mode commands, see Layer
2—WAN Command Reference.
Enabling the transmission of QSIG signaling over a SIP network
With the SIP for telephones (SIP-T) protocol, the ISDN signaling messages can be tunneled through the
SIP messages. The device only supports encapsulating QSIG messages within SIP messages. For more
information about the SIP-T protocol, see "Configuring SIP."
To configure the SIP tunneling function:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter E1/T1 interface view.
controller { e1 | t1 } slot-number N/A
3. Bundle timeslots into a PRI
group.
pri-set [ timeslot-list range ] N/A
4. Exit E1/T1 interface view.
quit
N/A
5. Enter the view of the serial
interface created for the PRI
group.
interface serial number: { 15 | 23 }
N/A
6. Enable QSIG signaling.
isdn protocol-type qsig
By default, DSS1 signaling is
enabled.
7. Exit E1/T1 interface view.
quit N/A
8. Enter the view of the voice
subscriber line of the PRI
group.
subscriber-line number: { 15 | 23 }
N/A
9. Enable the QSIG tunneling
function.
qsig-tunnel enable Disabled by default.
NOTE:
• To enable the QSIG tunneling function, you must also execute the qsig-tunnel enable command on the
voice trunks of both the ingress and egress gateways.
• When the QSIG tunneling function is enabled, the system will not process or send non-QSIG ISDN calls.
• The overlap mode ISDN calls do not support QSIG tunnel function.