NEC-Sopho Integration

[AYAMJ]

Dear All Helpers

i'm a new @ NEC-Sopho
I've NEC-SV9100 connected to Sopho iS3000 using 2xPRI GCD-PTRA 4 wire Tied Line Trunk with 60 B-Channel
NEC-SV9100 has internal extensions of 4xxx and the Sopho has Analog Extensions [1xxx, 2xxx, 3xxx, and 5xxx] also has 34 PSTN Lines
when i dial from 4444 to 1602 the call established but when i tried to call from 1602 to 4444 i got busy tone coz there is no route configured for 4xxx on Sopho
how can i configure Sopho to know the IP Phone extensions on NEC-SV9100

also i need the IP Phones to dial 9 trunk access code on NEC then the NEC-SV9100 directly pickup any of the 34 PSTN lines on Sopho so i can establish external call from NEC IP Phones
i configure ARS and F-Route on NEC but when i dial 9 i hear another tone then i dial any mobile number i got on my NE IP Phone Screen Line 001 then i hear silence only

Regards,
Ahmad