Local calls not working in Mexico Short code problem?

[MarcinA]

'm new to this forums and Avaya IP office as well. We have 5 IP offices setup and I need some help with Mexico unit. I did setup preferred voice mail server in US and Mexico unit connects to it just fine thru SCN tunnel over SonicWall VPN tunnel. I can make an incoming phone call to the main line and it goes to Auto Attendant in US as it is programmed. I can make long distance phone calls from phones in Mexico (01 866 XXX XXXX) and I can make international calls to US (001 847 XXX XXX) and internal calls by extension woks fine. The problem I have is I can not make local calls in Mexico. Their local area code is 844. I tried different combinations but none work. I think I have a problem with short codes. Here is the list I have in user rights:

Code Telephone number Feature Line Group ID
9N N DIAL3K1 50
1XXXXXXXXXX 1N DIAL3K1 50
XXXXXXXXXX 1N DIAL3K1 50
01XXXXXXXXXX 01N DIAL3K1 50
XXXXXXXXXXN 1N DIAL3K1 50
1844XXXXXXX 1844N DIAL3K1 50
844XXXXXXX 844N DIAL3K1 50
8N N DIAL3K1 50

No idea why it is not working. ARS has following entries:
Code Telephone number Feature Line Group ID
0N ONSi8441715061 DIAL3K1 1
1N 1NSi8441715061 DIAL3K1 1
XN XNSi8441715061 DIAL3K1 1
XXXXXXXXXXN NSi8441715061 DIAL3K1 1
XXXXXXXN NSI8441715061 DIAL3K1 1
01N O1NSi8441715061 DIAL3K1 1

Thank you in advance for your help

Martin