Door entry handset set

[AndrewD7777]

I have an old Urmet door entry phone and looking to replace with a newer one.

Been told the Atlantico will do but the wiring looks slightly different.

Existing one has 1 CA 2 6 10 9 plus a little white plug in clip with Red White Blue wiring. When you remove this from the old handset the phone goes dead. There appears to be nowhere this goes on the NEW handset??

Any help would be fab!

 

[OwainDIYer]

Urmet 1131, 1132 or 1133? The triple wire with the clip is the curly cord to the handset.
http://www.intercomsrus.com/handset pdf/Urmet 1140 Signo Intercom Handset Data Sheet.pdf