We have currently a Siemens Hicom 150E Office Point system in place.
There are 2-3 incoming lines over ISDN and the Siemens system is connected to several analoge simple phones.
Now I’d like to keep the system running for internal calling and ad a freepbx system for outgoing calls. The plan is to cancel the ISDN line as soon as possible.
So here comes the problem.
I have a SPA3102 connected using the Line1 port to the old phone system (extension 16)
and have for testing 2 softphones 209 and 210. I’d like to add the SPA3102 like a trunk if i dial a 2 digit extension it should usw the spa3102 Line1 and call the extension (old siemens sytem).
I can add the spa3102 as an extension and if I call it and have a phone connected to line1 it rings. If I add the spa3102 to the analog phone system on port 16. Nothing happens.
Is the idea to add the spa3102 Line1 as a trunk the right solution or can I just add the spa3102 as an extension and have some sort of dialplan on the spa3102?