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Hello to all. I installed a control panel that accepts commands via phone (DTMF), but since last week, she has had trouble accepting commands. When the connection is made by a conventional phone in just 50% of attempts to understand the central command. Already when performed by a mobile phone, with the phone company "A" with success in 75% of attempts, and another (B) in almost 100%. DTMF codes are generated by the device or the phone company? Anyway, the panel is under warranty, but I want to make sure that is a defect before changing. 

 

PS: sorry for my bad english.

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Hello James. I tested with two different cell phones, and only when calls are made ​​by the company "A" have success in all attempts. When using other, independent of the device, not always the panel understands the codes.

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