Hi all,
I'm trying to establish a link between the analog PABX in a small Wellington office and a small Auckland office.
I have two SPA3102 that i have conected to a spare extention on each PABX (into the line port on the SPA).
Im trying to configure it so that when the extension of the SPA is dialed  it will transfer to the other office SPA which would dial the extenion  listed in the dialplan.
The connection looks like this: Wgtn PABX > Wgtn SPA3102 > Wgtn Modem/Router > WWW > AKL Modem/Router
> Akl SPA3102 > Akl PABX.
I think i need to have a different port between the Line and PSTN tab but would like some expert guidance,
thus the reason for my post.
Many thanks in advance for any help, will reduce the size of the lump on my head from smacking it against a wall.

Configuration as follows
Wgtn Office - 192.168.1.41, port forward 5064 to 192.168.1.41.

Line 1 tab
Line Enable: Yes
Sip port: 5064
Proxy: [AKL Office WAN IP]
Register: Yes
UserID: WgtnOffice
Use Auth ID: Yes
Auth ID: WgtnOffice
Password: secret
Dial Plan: (S0<:AklOffice@AKL Office WAN IP:5064>)
Enable IP Dialing: Yes

PSTN Line tab
Line Enable: Yes
Sip Port: 5064
Proxy: [AKL Office WAN IP]
Register: Yes
UserID: WgtnOffice
Use Auth ID: Yes
Auth ID: WgtnOffice
Password: secret
Dial Plan 1: (S0<:AklOffice@Akl Office WAN IP:5064>)
Dial Plan 2: (<201>S0)
Voip-to-pstn enable: Yes
VOIP Caller Auth Method: HTTP Digest
Line 1 VOIP Caller DP:2
VOIP User 1 Auth ID: AklOffice
VOIP User 1 DP: 2
Voip User 1 Password: secret
PSTN-to-Voip enable: Yes
PSTN ring thru line 1: Yes
PSTN Caller Default DP: 2
FXO answer delay: 0
PSTN answer delay: 0

Akl Office - 192.168.1.124, port forward 5064 UDP to 192.168.1.124.

Line 1 tab
Line Enable: Yes
Sip port: 5064
Proxy: [Wgtn Office WAN IP]
Register: Yes
UserID: AklOffice
Use Auth ID: Yes
Auth ID: AklOffice
Password: secret
Dial Plan: (S0<:WgtnOffice@Wgtn Office WAN IP:5064>)
Enable IP Dialing: Yes

PSTN Line tab
Line Enable: Yes
Sip Port: 5064
Proxy: [Wgtn Office WAN IP]
Register: Yes
UserID: AklOffice
Use Auth ID: Yes
Auth ID: AklOffice
Password: secret
Dial Plan 1: (S0<:WgtnOffice@Wgtn Office WAN IP:5064>)
Dial Plan 2: (<301>S0)
Voip-to-pstn enable: Yes
VOIP Caller Auth Method: HTTP Digest
Line 1 VOIP Caller DP:2
VOIP User 1 Auth ID: WgtnOffice
VOIP User 1 DP: 2
Voip User 1 Password: secret
PSTN-to-Voip enable: Yes
PSTN ring thru line 1: Yes
PSTN Caller Default DP: 2
FXO answer delay: 0
PSTN answer delay: 0