[arm-allstar] export DTMF as variable to bash

[Patrick Perdue]

Hi Steve:

Yes, I'm definitely interested at looking at this script. I'm 
particularly interested to see how you handle switching TX and RX 
talkgroups on the fly, as I didn't know this could be done with 
DVSwitch. Also, are you using hardware or software vocoding? I'm using 
md380-enu until my ThumbDV's arrive (my other ThumbDV's are on a 
different project.) Just wondering if you've done any filtering on the 
hamvoip side, and/or changes to Analog_Bridge to optimize audio between 
modes. After running the bridge for a few days, I'm discovering that 
some radios, particularly Kenwoods, are emphasized in such a way that 
they are almost not understandable on DMR. Some of that could be fixed 
with a few well tuned notches, I think, but I'd like to do more DSP, 
like multi-band compression to try for a more uniform sound across 
multiple different types of radios, maybe even a downward 
expanderbetween Asterisk and the vocoder, but not sure of a way to make 
this happen, either within Asterisk or somehow piping Analog_Bridge to 
SoX for processing, then back to Analog_Bridge to send off. This is a 
bit off-topic for this group, but I'm interested in any optimizations 
you may have done.


On 10/30/2019 10:57 PM, "Steve via ARM-allstar" wrote:

> There is a howto on hamvoip.org for using the phone patch functions:
> https://www.hamvoip.org/Allstar_extended_functions_using_autopatch.pdf
>
> I have done what you're talking about on my node 46971. But you don't 
> need to do all the talking to brandmiester nor restarting the 
> DVSwitch. There is a port you can send the commands to for changing 
> talk groups on via UDP:
> https://dvswitch.groups.io/g/main/topic/asl_to_dmr_bridge_changing/23752012?p=Created,,,20,1,0,0 
>
>
> I'm running late tonight but if your interested I can put up my 
> scripts and configuration files for you tomorrow (Thursday) night. 
> I've been using them for nearly a year now without any problems. I 
> also have a node.js app running on it that I can connect to for 
> changing the talk group from my phone or a web browser.
>
> Steve - WB4BXO
> http://www.stevemobley.com
>
> -----Original Message----- From: "Patrick Perdue via ARM-allstar"
> Sent: Wednesday, October 30, 2019 2:41 AM
> To: Don Backstrom - AA7AU via ARM-allstar
> Cc: Patrick Perdue
> Subject: [arm-allstar] export DTMF as variable to bash
>
> Hi all:
>
> This is probably more of an Asterisk question in general. I seem to
> remember being able to do this years ago, but my knowledge is rusty.
>
> Here is what I want to do.
>
> Using DVSwitch, Analog_Bridge and MMDVM_Bridge, I want to create a macro
> that allows linking to any given Brandmeister talkgroup to an Allstar
> node, probably a second, private node linked to primary, so that the
> link can be easily dropped. The way I envision this working is thus.
>
> Call a macro, followed by a 2 to 7 digit talkgroup or DMR ID, which is
> then exported as a variable.
>
> Run a script that first clears all static talkgroups using the
> Brandmeister API via cURL, then sets the TGID in the previously defined
> variable as the only talkgroup using the same API.
>
> Stops MMDVM_Bridge, if it is running.
>
> Finds and replaces a specific line of text in MMDVM_Bridge.ini, defining
> the outbound TGID.
>
> Starts MMDVM_Bridge.
>
> Evaluate the running status of MMDVM_Bridge, and play an appropriate
> sound file to inform the user that the bridge is active, or not, if the
> process isn't running after a second or two, or if the output shows that
> MMDVM_Bridge didn't successfully login to the master server, probably by
> reading the last few lines of MMDVM_Bridge's log if the process is 
> running.
>
> I know how to make most of this happen in bash. What I'm unsure of,
> however, is how to get some digits from Asterisk to a variable that can
> be called from bash, or use functions to do all the same stuff with the
> evaluated digits in Asterisk itself. Also, not sure of the best way to
> have a macro that then executes a script, gets digits, then does things
> with them.
>
> Or, has this already been done, and I am reinventing the wheel?
>
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