I had a doorphone die and all the spares I have are older units. I put this unit in about 5 years ago and at the time it seems like there was a issue with older doorphones and I had to get a newer model.
I just need to confirm if there is or is not a compatibility issue with the older doorphones. I have had many doorphone issue over the years and all updates are applied. I think it just failed and needs the newer part number doorphone.
Thanks for all the help
I just need to confirm if there is or is not a compatibility issue with the older doorphones. I have had many doorphone issue over the years and all updates are applied. I think it just failed and needs the newer part number doorphone.
Thanks for all the help