Quodro 2x to be remote extensin off 16x

[baoan]

Hello every one,

can anybody help me to setup the 2x system to be remote off the 16x system, here it's the description off 2 systems:


16X:

- Have a DSL connection with Public IP address (Static)
- Full CONE NAT
- Have one VE (Virtual Extension) for the 2x
- Have 4 PSTN lines


2x :
- Right now have a Wireless Connection (Portable Internet Connection) from Rogers by next week will have a T1 with Public IP
- Has no PSTN Line
- Have 2 extensions
- FULL CONE NAT

Tee phones behind those two systems work well between them (Extension to Extension).

The problem it's, when i try to call from 2x to a PSTN phone (My cell), i got a message said "CHECK YOUR EXTERNAL PHONE LINE"


Thank's