New phone system and offloading of old one

[3s-gtech]

We're still on our ancient BT Meridian/Norstar digital system which must be 20+ years old now, but working well (and spares are cheap!). Recently got it upgraded with auto attendant and CCR - the module to do this was built as an expansion which plugged in. Also gives us voicemail, night mode etc. Surprising what you can do with an old system - is there definitely no upgrade available for yours?

[teklogic]

We have just had a Mitel System installed, cannot fault it so far works really well over some sips.