Here is the ars entery for 9. 10 digits would not be required as this is a local number to this switch.
Dialed Total Route Call
String Min Max Pattern Type
9 7 7 2 natl
From what I can see the call is using the same Route Pattern and Trunk Group.
17:09:41 active station 26111 cid 0x29e9
17:09:41 G711MU ss

ff ps:20 rn:1/1 10.32.2.75:4526 10.50.249.30:4652
17:09:41 xoip: fax

T modem

T tty:US 10.50.249.30:4652 uid:0x87d8
17:09:43 dial 9xx3058 route:ARS
17:09:43 term trunk-group 1 cid 0x29e9
17:09:43 dial 9xx30586 route:ARS
17:09:43 route-pattern 2 preference 1 cid 0x29e9
17:09:43 seize trunk-group 1 member 104 cid 0x29e9
17:09:43 Setup digits xx30586
17:09:43 Calling Number & Name xxx4426111 NO-CPName
17:09:43 G711MU ss

ff ps:20 rn:1/1 10.32.2.75:4526 10.50.250.20:3336
17:09:43 xoip: fax

T modem

T tty:US 10.50.250.20:3336 uid:0x87d8
17:09:44 Proceed trunk-group 1 member 104 cid 0x29e9
VOIP data from: 10.50.250.20:3336
17:09:53 Jitter:6 5 0 0 0 0 0 0 0 0: Buff:16 WC:1 Avg:5