Integration SIP Trunk ftom Polycom DMA & IP Office

[Jhon88]

Dear All,

I have just create Polycom DMA and ip office integration using sip trunk with detail schematic like this image:
[link Your file's link is:

http://files.engineering.com/getfil...020bb4e881&file=Polycom_&_IPO_Integration.jpg

]Link[/url]
Polycom DMA
sip trunk prefix : none (all prefix will forward to IP Office)
extention : 3901,3902 etc
press 7000 then extention 7000 ring on IP Office.

IP Office:
Co line Group : 1
ISDN line group : 2
Sip Trunk line Group : 3 (TG:3 on image)
incoming route: line 3, destination = . (any digit received)
extention : 7000
Shortcode : 39N/dial/39N/3 = dial extention from ip office to Polycom DMA. it's work fine
shortcode : 9N/dial/N/1

when extention 7000 press 9, the extention get dial tone, and it can make outside call normally.

My Question is, how to make extention 3901 on Polycom DMA get dial tone from ip Office dan make outside call.

Any answer will be most appreciate.

Thanks, Jhon