Unitrunker DTMF sound

[screamin72]

Unitrunker is working well. Nothing wrong. There is a occasional DTMF tone. I keep hearing it while monitoring my local EDACS system. I hear it when the voice radio is not stopped on a frequency and when stopped on a frequency. I assumed this is a feature of UniTrunker. I read somewhere about some DTMF logging. Can you you help me with understanding what the DTMF tone I hear is?

 

[SCPD]

You may hear beeps at the end of analog voice calls. This is a short burst of data. There's an open "TODO" item to suppress this noise.

Noise in between voice calls come from the park frequency. What is your voice receiver's park frequency?