# How to or is it possible to Pass DTMF - 2019 edition

**URL:** <https://community.allstarlink.org/t/how-to-or-is-it-possible-to-pass-dtmf-2019-edition/15678>\
**Category:** AllStarLink\
**Created:** [November 4, 2019, 9:27pm UTC](https://community.allstarlink.org/t/how-to-or-is-it-possible-to-pass-dtmf-2019-edition/15678 "2019-11-04T21:27:04Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![KK6QMS](https://community.allstarlink.org/user_avatar/community.allstarlink.org/kk6qms/32/1356_2.png) [@KK6QMS](https://community.allstarlink.org/u/KK6QMS)\
**Post date:** [November 4, 2019, 9:27pm UTC](https://community.allstarlink.org/t/how-to-or-is-it-possible-to-pass-dtmf-2019-edition/15678/1 "2019-11-04T21:27:04Z")

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Hello-  
We have tried 2 different methods to pass DTMF over our repeater system to control our SRS controllers. (propagate\_dtmf and pager tone using COP 48)

Our goal is:

hit #123 on any repeater to Allstar, for #123 to come out intact on every port, including ASL endpoints (places where an RTCM (ASL node) is connected to a controller port.

Ideally, it would be nice if it would just allow the # DTMF to pass through, instead of doing any muting whatsoever.

We have successfully got it to pass all DTMF digits, except #, using the ‘propagate\_dtmf’ flag in rpt.conf.

Any suggestions or info appreciated-  
73  
Clifford  
KK6QMS

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**Author:** ![WD6AWP](https://community.allstarlink.org/user_avatar/community.allstarlink.org/wd6awp/32/5_2.png) [@WD6AWP](https://community.allstarlink.org/u/WD6AWP)\
**Post date:** [November 5, 2019, 12:39am UTC](https://community.allstarlink.org/t/how-to-or-is-it-possible-to-pass-dtmf-2019-edition/15678/2 "2019-11-05T00:39:28Z")

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Found this by searching this site. See if it helps.

> [@Dtmf pass through](https://community.allstarlink.org/t/dtmf-pass-through/9732):
>
> CC: Hello all! I need some help. I am trying to control a cat200 repeater controller via dtmf. It is its own node. I have my other node (uhf repeater)connected to it, from which i would like to send the commands from. I have tried the \*4 and the node number. And then i hear “By your command”. But dtmf is not making it to the controller. It is making it to the other node, because I can issue it commands. It is just not passing through the other node, which i would like for it to do. Any thoughts…

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**Author:** ![KK6QMS](https://community.allstarlink.org/user_avatar/community.allstarlink.org/kk6qms/32/1356_2.png) [@KK6QMS](https://community.allstarlink.org/u/KK6QMS)\
**Post date:** [November 5, 2019, 2:33am UTC](https://community.allstarlink.org/t/how-to-or-is-it-possible-to-pass-dtmf-2019-edition/15678/3 "2019-11-05T02:33:06Z")

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Thanks Tim will look and pass along to Mike as well.  
Clifford

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**Author:** ![KK6QMS](https://community.allstarlink.org/user_avatar/community.allstarlink.org/kk6qms/32/1356_2.png) [@KK6QMS](https://community.allstarlink.org/u/KK6QMS)\
**Post date:** [November 14, 2019, 5:24pm UTC](https://community.allstarlink.org/t/how-to-or-is-it-possible-to-pass-dtmf-2019-edition/15678/4 "2019-11-14T17:24:12Z")

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Mike mentioned he sort of found a way but requires certain controllers on both ends not RTCM on one side and SRS on the other. (or something like that) Anyway- frustrating something so simple seems so hard to do. Thx for the assistance. 73

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**Author:** ![Don](https://community.allstarlink.org/letter_avatar_proxy/v4/letter/d/ed655f/32.png) [@Don](https://community.allstarlink.org/u/Don)\
**Post date:** [August 23, 2020, 12:37am UTC](https://community.allstarlink.org/t/how-to-or-is-it-possible-to-pass-dtmf-2019-edition/15678/5 "2020-08-23T00:37:02Z")

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did you ever get the dtmf pass tru to work? i have it working in my  
system. K6DLP

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**Author:** ![KK6QMS](https://community.allstarlink.org/user_avatar/community.allstarlink.org/kk6qms/32/1356_2.png) [@KK6QMS](https://community.allstarlink.org/u/KK6QMS)\
**Post date:** [August 27, 2020, 5:44am UTC](https://community.allstarlink.org/t/how-to-or-is-it-possible-to-pass-dtmf-2019-edition/15678/6 "2020-08-27T05:44:29Z")

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How did you solve it?
