
430 Chapter 48 Setting up VoIP trunks for fallback
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Adding routes for fallback
Enter the routes you want to use for normal and fallback traffic.
Add routes under Configuration > Telephony > Dialing Plan > Routing.
To add the PSTN route (to other system)
1 Type a number between 001 and 999.
This route defines the PSTN route to the other system. Only numbers not otherwise assigned
will be allowed by the system.
2 Click OK.
To add the PSTN route to the local PSTN lines
1 In the Route field, type a number between 001 and 999.
This route defines the PSTN route to your local PSTN.
2 Click Save.
To add the VoIP route
1 In the Route field, type a number between 001 and 999.
This route defines the VoIP route.
2 Click Save.
Assigning the line pools to routes
Assign the line pools to the routes you created in the “Line pools (and access codes)” on page 303.
To assign PSTN line pool (to other system)
1 Click the route you created between the PSTN line and the other system.
2 In the Use Pool box, type the letter of the line pool for the PSTN lines to the other system.
3 In the External Number field:
If this is a public PSTN line, enter the dial numbers that access the other system through the
PSTN. For example: 1<area code><local code>.
4 In the DN Type box, choose Public.
To assign PSTN line pool to local PSTN lines
1 Click the route you created for your local PSTN line.
2 In the Use Pool box, type the letter of the line pool for the PSTN line.
3 In the External Number field: leave this field blank.
4 In the DN Type box, choose Public.
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