NS700 How to select a trunk from a button on the dt680

[Tom-Lafleur]

I have NS700 ver 9
KX-DT680 phones

On the DT680, I have buttons for each of my CO trunks
for sake of simplicity, they are CO1 to CO4

If I pick up handset, it select a trunk that available and I dial my number, work fine...
But if I want to dial from a specific trunk, ie: CO4, I press CO4, and start dialing,
it then select a trunk from the available pool, and NOT CO4 as I was expecting.

On the DT680, each lines button is set as "Single CO",
Incoming call to each CO work fine and are displayed correctly on the DT680

What I want to do is, to be able to select a given trunk if needed from time to time for outgoing call,
overriding the auto trunk selection.

Suggesting on what I'm doing wrong, how to fix?

thanks

 

[omonat]

Should be under program No. 4.1.4
NB: Parameter selection specifies the CO Line TG to be ceased

 

[Tom-Lafleur]

4.1.4 has CO's set "single CO

 

[omonat]

The parameter selects the TG