Can anyone help me understand Greek ISDN and how to isolate/identify problem please?
I have a house in Greece with OTE CONN-X broadband over ISDN – the internet connection works fine but the voice channel(s) work only intermittently. I'm technically barely illiterate but the presentation is something like this:
OTE connect to external point on the house. From their termination, internal wiring to three outlets, only one of which is in regularly in use (although I have tried the provided equipment in all 3 with same result. Looks like only 2 wires presented (red/green) to the internal outlet. Straight-through RJ11 (I think) cable to a small un-powered box labelled LEA PCE 1381-21 rev.08 ISDN/ADSL splitter. One cable then goes to SAGEM F@ST 2444 OTE Conn-x ISDN router (then wirelessly to pc) and the other goes to an OTE-labelled SANTIS-ab S1608-K1200-A30-04 and then to telephone handset. The SANTIS box has 2 external indicator lights and one permanently shows orange – the other shows green when it's illuminated. If the green is illuminated the voice channel works fine but if it is not illuminated the voice channel only works sometimes. Both outgoing and incoming affected in same way.
Have had OTE engineer on-site and he says the problem is internal wiring and I need to find a local electrician to rewire – that's a problem on many levels here – finding an electrician at all in a remote village – then finding one who understands telephony – and then all the cabling is in trunking buried deep inside the walls and floor!
My suspicion is that the splitter is faulty but I've no way of knowing for sure and OTE reckon it's the wiring between their termination and the outlet.
Can anyone help explain how the internal wiring could be at fault if the ISDN connection (internet connection) works fine and the voice over ISDN intermittently doesn't? Seems they both use the same 2 wires so I can't get my untutored head round it.
Any help on how to isolate/identify problem without specialist equipment or ripping out the walls would be appreciated – in simple terms if possible.