I have an application were I need to generate a custom reorder tone. The specific tone is an alternating high and low tone. It is 440Hz on for 250ms then 620Hz on for 250ms repeated. This is a somewhat common tone in US systems and often referred to as an intercept tone.
I can’t seen to find a way to use two different frequency tones not mixed together in any Grandstream product. Maybe this possible but not documented? I have done this with Cisco ATAs but I much prefer the Grandstream ones. It seems the ability to have alternating tones is missing.
This is how this tone would be defined on a Cisco ATA: 440@-19,620@-19;10(.25/0/1,.25/0/2)
and this is how it is defined on Asterisk: intercept = 440/250,620/250
Any help is much appreciated!