Configuring QSIG over PRI
Figure 4-22 depicts a QSIG over PRI interface agreement cartography example.
IP
Network
Voice-Enabled Phone
Router
Voice-Enabled
Router
PBX
QSIG
T1/E1 Channel
V V
PBX
QSIG
T1/E1 Channel
Figure 4-22 QSIG over PRI Interface Agreement Example
You can use the afterward accomplish to configure the T1 or E1 ambassador for QSIG over PRI:
Step 1. Enter T1 or E1 ambassador agreement approach for the defined controller.
Step 2. Specify PRI on the time slots that accomplish up the PRI group. Maximum T1
range: 1–24. Maximum E1 range: 1–31. Separate low and aerial ethics with a
hyphen.
Step 3. Enter interface agreement approach for the defined PRI slot/port and
D-channel ISDN interface.
Chapter 4: Performing Call Signaling over Digital Voice Ports 237
Note D-channel ISDN interface is (for T1) 23 and (for E1) 15.
Step 4. If you configured the all-around PRI ISDN about-face blazon for QSIG abutment in global
configuration mode, this command overrides that command and configures
the interface ISDN about-face blazon to abutment QSIG signaling.
Step 5. This footfall varies based on whether you are configuring the ambassador to act as
a user ancillary accessory or a arrangement ancillary device.
(User ancillary only) Configure Layer 2 and Layer 3 anchorage approach appetite and
clock cachet for the user (that is, the Terminal Equipment (TE)). This is the
default.
or
(Network ancillary only) Configure Layer 2 and Layer 3 anchorage approach appetite and
clock cachet for the arrangement (that is, the Arrangement Termination (NT)).
Example 4-19 illustrates the agreement for a QSIG over a PRI interface. The example
provides both a user ancillary and a arrangement ancillary configuration.
Example 4-19 QSIG over PRI Interface Configuration
Router(config)#controller t1 0/1
Router(config-controller)#pri-group timeslots 1-24
Router(config)#interface consecutive 0/1:23
Router(config-if)#isdn switch-type primary-qsig
Router(config-if)#isdn protocol-emulate user
! OR
Router(config-if)#isdn protocol-emulate network