we have an old OXO R1 (we got that in 2009 I think - it's relabeled as T-Systems Octopus Open - left lower corner in OMC "Telekom Octopus Open R1.x //..// R32.x") and ran into a problem lately. We are preparing to get a new upgraded telephone system but it might need another year to accomplish that due to several (internal) restraints...
Unluckily we need another phone right now and therefore have been looking into SIP phone creation in our OXO. Since we are stuck on this one, we want to try another method now which is connection another device via S0 ISDN that can then handle a SIP phone.
I am quite new to the OMC so I might need a few hints on how to configure this. We already have one S0 ISDN set up on port 33 but this was added long time ago so I can't go ask anyone on how they did that. Also I didn't find the procedure described in the manuals
I now wanted to use either port 45 (which I am not sure about if it's even possible) or one of the two ISDN T0 modules (see picture attached) if they can be used for that.
When I try to add a new participant/device I can not chose it to be S0 ISDN as the port 33 device is. It's just not available. Is there anything I have to configure first? Or do I need to plug the S0 ISDN device in first to have that option? How do I setup T0 ISDN correctly?
Any help would be appreciated.
