I find although a lot of sets say they allow, and give instructions on how to link to sets from other manufacturers, this is not always possible.
I had a Integrated Nolan NCom B5 System in my old helmet. Sat Nav and phone fine, but would not link to sets of other makes. I thought it was knackered until a friend of a friend with another B5 tried to link and it worked perfectly.
In my Caberg I’ve gone for an Interphone Tour, as a couple of friends have the older F5MC sets. The Tour and F5MC both advertise up to four sets can connect, until you read the small print. If different models only three sets can link and although clear when close by, the clarity soon goes with a couple of hundred metres between you.
Also, I’ve tried to link to some RoSPA Associates with Sena, the other big one can’t remember name and Viper systems without success. Sena and the other popular one say you can link to one other helmet from a different manufacturer using the link the Sat Nav uses, but have never got it to work.
The Viper instructions were upfront saying it would only connect to other Viper units.
I think the moral is, you get what you pay for. I like the reports above re the Cardo units and will probably look at that next time.
In the meantime if you’re looking at less expensive units all buy the same type. Like the N-Com I recently connected to another bloke with an Interphone Tour and it connected straight away and was clear and reliable throughout the day.
Interphone do a more expensive model which I think allows up to eight to connect, but that will almost certainly be only if the same model.
