NEC SL2100 and SV9100: support, call forwarding and button changes

NEC has left the Australian market. What now?

NEC no longer sells business phone systems in Australia. Support is limited and spare parts can't be guaranteed. A working SL2100 or SV9100 can still serve a business well, and moving it to SIP can extend its life, but it's worth planning ahead rather than waiting for a failure. We'll tell you plainly where your system stands.

Call forwarding when staff are away

We can program a forwarding key on each handset, so staff can switch their calls to a mobile or a colleague, and back again, with one press. Tell us who needs it and where calls should go.

Changing buttons, speed dials and labels

NEC's own settings tools are available, but they aren't easy to use and it's easy to change the wrong thing. Most customers send us a simple list (who, which button, what it should do) and we make the changes under their support arrangement, usually remotely.

Phones or SIP lines dropping out on a busy network

On larger office networks, we've seen SL2100 and SV9100 systems struggle with the background traffic from many devices sharing one network. The system's network connection stops responding: SIP lines and IP handsets drop off, and a restart only fixes it for a while.

The fix is to give the phone system its own space on the network. Either put the phones on their own network segment (a VLAN), or move just the phone system onto its own subnet so the handsets can still reach it. We plan this with your IT provider, because it involves changes on your router or switches.

Keypad tones not working on SIP calls

If callers can't use menus ("press 1 for sales") or your own staff can't enter PINs on outside calls, the SIP carrier may need keypad tones sent in a different format (known as RFC 2833). The NEC supports it, so this is a settings match between the system and the carrier.

Phones ring once then stop (analogue adapters)

Where an analogue adapter feeds the NEC's lines, the adapter has to use the Australian ring pattern (two short rings, then a pause). Many adapters default to the American pattern of one long ring, which the NEC doesn't recognise, so handsets ring once and give up. Setting the adapter to the Australian cadence fixes it.

Silence instead of ringing on outgoing SIP calls

If you hear silence rather than a ringing tone when calling out, the NEC may not be picking up the carrier's "call progress" signal. A system setting that tells it to listen for that signal usually fixes it.

Remote or on site?

With secure remote access in place, most changes and checks happen remotely. If remote checks can't pinpoint the problem, or there's no remote access, we book a site visit.