Things to take care of while enabling AAR

a. Configure AAR groups, prefixes as required
b. Enable AAR service parameter (set it to true)
c. Apply AAR groups to lines, gateways, voice mail ports etc
d. Apply locations to phones, gateways, voice mail ports
e. Apply AAR CSS to phones and gateways

f. Make sure that you have appropriately set the external phone number mask. In AAR group prefix settings use only 91 or 9 depending upon whether its a Local or LD.

This assumes that Locations, Route pattern and a CSS for use by AAR, have already been defined

***To Enable AAR****

Create an AAR group name
a. Prefix digits with in “AAR Group” — This defines prefix used for calls with in the same AAR group. For ex. two sites in the same metroplex, when calls route via AAR, the above prefix is used.

b. Prefix between AAR groups — This defines prefix used when calls go from one AAR group to another.

*** Note *** Remember to add a 9 as trunk access code.
Remember to add a 1 for long distance

Add the group under line configuration of a phone.

Add AAR CSS under phone configuration. This CSS defines access restrictions to route patterns that will be used to dial out via PSTN.

AAR-Group

Create an AAR group name
a. Prefix digits with in “AAR Group” — This defines prefix used for calls with in the same AAR group. For ex. two sites in the same metroplex, when calls route via AAR, the above prefix is used.

b. Prefix between AAR groups — This defines prefix used when calls go from one AAR group to another.

*** Note *** Remember to add a 9 as trunk access code.
Remember to add a 1 for long distance

Add the group under line configuration of a phone.

Add AAR CSS under phone configuration. This CSS defines access restrictions to route patterns that will be used to dial out via PSTN. You don’t need to create a new CSS for AAR. You can reuse the least restrictive CSS that is already available.