The problem I'm having with is system is, there is no model number or logo nothing but the letter "b" and that could mean anything, all I want is really anything that works and don't make so much scary noise when someone press the buzzer from downstairs. only if i could change the transformer...
Has anybody got an idea of which modern door intercom phone system can be replaced with this old rocket i have in my house when ever it rings, it sounds like an old electrical transformer which is exactly what it is inside it, Have pictures of it below. Thanks guys.