Voice mail is not responding

[hearthrobes]

hi all,

i am new here please give me some suggestion how can i solve this actually i have some branches equipped with Avaya g430+s8300 and Avaya Messaging. my problem is when i am calling from my branch with my extension to other branch extensions and if user not responding the call the call is going to voice mail but if i am calling to the same branch extension from other branch (if user not responding) it not going to voice mail , its showing only forwarding on Extension screen and ring is continuous. please any body can solve my problem thanks in advance .....i traced


time data
VOIP data from: [10.68.3.6]:2058
10:55:56 Jitter:4 3 3 3 3 3 3 3 3 3: Buff:23 WC:103 Avg:3
10:55:56 Pkloss:0 0 0 0 0 0 0 0 0 0: Oofo:0 WC:0 Avg:0
10:55:57 dial 6999 route:UDP|AAR
10:55:57 term trunk-group 10 cid 0xc4
10:55:57 dial 6999# route:UDP|AAR
10:55:57 route-pattern 10 preference 1 cid 0xc4
10:55:57 seize trunk-group 10 member 4 cid 0xc4
10:55:57 Calling Number & Name NO-CPNumber NO-CPName
10:55:57 Setup digits 6999
10:55:57 Calling Number & Name 2509 XXXXXXXXXX(extension name)
10:55:57 Proceed trunk-group 10 member 4 cid 0xc4
10:55:57 denial event 1166: Unassigned number D1=0x957 D2=0x50101
10:55:57 idle trunk-group 10 member 4 cid 0xc4
VOIP data from: [10.68.3.6]:2074



note : 6999 is voice mail extension