On 01/22/2011 09:42 AM, Peter Elke wrote:
From: Peter Elke [mailto:pete.elke@esquared.com] Sent: Saturday, January 22, 2011 3:26 AM To: Ken Subject: RE: [App_rpt-users] Location dependant squelch tail?
Hi Ken,
What I meant to get across was... There is a squelch tail when the local mobile unkeys (before the hang time) but you only hear it if you are monitoring the local node's transmit frequency. Remotely connected stations don't hear the tail, only a soft click or nothing from the same transmission.
The local repeater transmitter dropping does not cause a tail if the mobile is in PL decode.
I thought this was just strange, so much so that I sound ignorant reporting it...
73's Pete (WI6H)
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Packet propagation across an the Internet and the use of jitter buffers in Asterisk causes this. On a network-based connection, the unkey control message is reaching the far end before the audio packets containing the squelch tail noise. On a local connection, the audio packet delay is much less. I suppose a delay could be added to the local audio packet stream, but this impairs full duplex operation even more as the delay there is already annoying enough. Steve. WA6ZFT