On a DSC system there would be no way for them to even know the you have the Envisalink as no programming is required. Based on your comments it sounds like that is what you have.alec6542 wrote:So back to my question, can I just install the EVL3 without letting them know, or will the EVL3 disrupt their phone monitoring somehow?
Thanks again.
Some of the posters on this thread are referring to limitations in Honeywell panels whereby the primary communicator (phone line) has to get the same events sent to the secondary (Envisalink). There is no such limitation on DSC panels.