When using aar to send the calls, don't forget to have the route pattern delete the 3 digits that make up the pattern, and just send the 4 digits of the extension you're calling...
[tt]change route-pattern 13 Page 1 of 3
Pattern Number: 13
Grp. FRL NPA Pfx Hop Toll No. Del Inserted IXC
No. Mrk Lmt List Digits Digits
1: 25 0 3 user
2: user
3: user
4: user
5: user
6: user
BCC VALUE TSC CA-TSC ITC BCIE Service/Feature Numbering LAR
0 1 2 3 4 W Request Format
1: y y y y y n n both ept none
2: y y y y y n n rest none
3: y y y y y n n rest none
4: y y y y y n n rest none
5: y y y y y n n rest none
6: y y y y y n n rest none
[/tt]
Carpe dialem! (Seize the line!)