[arm-allstar] RepeaterPhone: Allstar App for iOS

Tue Oct 11 10:30:07 EDT 2022

>From the Developer and copied from another group:

From: repeaterphone-users at googlegroups.com
<repeaterphone-users at googlegroups.com> On Behalf Of Weston Bustraan

Generally there are two ways that a Bluetooth speaker mic connects to your
phone.

1. As a general Bluetooth audio "headset" device.

If you are getting crashes with any Bluetooth device connected, temporarily
turn off Voice Processing. There seems to be a bug with iOS with reporting
the sampling rate. In my testing, sometimes the Bluetooth device only
supports a 8kHz sampling rate, but iOS tells RepeaterPhone that it's 48kHz.
So RepeaterPhone goes ahead and sets up a 48kHz stream and, boom, crash.
This only happens with their Voice Processing audio unit; the standard
Remote IO unit works fine. What is even weirder is that, once you've
actually set up an audio stream using Remote IO, iOS seems to "discover"
that, "oops, I was wrong, that's really an 8kHz device" and Voice Processing
works fine from there on out. I added an entry to the FAQ
https://repeaterphone.com/faq/ about this because it seems to be a common
problem.

I haven't figured out a workaround for this yet. I'm not really sure how to
second-guess iOS. i.e. "iOS, you told me this is a 48kHz device, but I think
you're wrong. It's really a... hmm, how do I find out what it really is
without asking the OS"

2. As a Bluetooth Low Energy Push-To-Talk button.

There does not seem to be any industry standard, i.e. GATT Profile, when it
comes to the UUIDs used with these devices. I got lucky and found a list of
all the BLE services/characteristics embedded in the Zello app, so I adapted
the list for RepeaterPhone. Hypothetically, this should mean that any device
marketed as "Zello compatible" should be usable as a PTT device. But, of
course, there's a big distance between "hypothetically" and "known working".

I can say that I have specifically bought and tested this speaker mic:
https://www.amazon.com/dp/B09BJFKH6N

If you let me know which model you're testing with, I can get one on order
and make sure it's supported.

- Wes W8WJB

-----Original Message-----
From: ARM-allstar <arm-allstar-bounces at hamvoip.org> On Behalf Of "Darrell
Black via ARM-allstar"
Sent: October 11, 2022 10:13 AM
To: ARM Allstar <arm-allstar at hamvoip.org>
Cc: Darrell Black <gigahacker at gmail.com>
Subject: Re: [arm-allstar] RepeaterPhone: Allstar App for iOS

Can anyone point to a bluetooth PTT that has been tested with this app?

On Tue, Oct 11, 2022 at 10:03 AM "Patrick Perdue via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> Just FYI:
>
> You still need to first authenticate with allstarlink.org in order to 
> set up an IAX connection to a node in this way, and you can't override 
> the caller ID. It is always set to your call.
>
> This is fine for it's intended purpose of amateur radio, but you 
> should probably not go around connecting this to an existing GMRS node 
> using iaxrpt credentials. It looks pretty suspicious if N2DYI is 
> connected to WRQC647's node, and that will probably get you a really 
> short trip to the ban list.
>
>
> On 10/11/2022 8:25 AM, "ve3rwj via ARM-allstar" wrote:
> > Hi Larry.
> >
> > Does this app rely on using the "web-transcieve" portal?
> >
> > Only if that is how you want to connect.
> >
> > Can it connect directly to an AllStar node without using
> "web-transcieve", a
> > la DVSwitch?
> >
> > Yes, absolutely.
> >
> > On the Favorites screen, click the "+" in the upper right corner. 
> > For Credentials, choose "Node" instead of "Account" and you will be 
> > able to enter your IAX username and password there. That's it.
> >
> > Chris
> >
> >
> > _______________________________________________
> >
> > ARM-allstar mailing list
> > ARM-allstar at hamvoip.org
> > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> >
> > Visit the BBB and RPi2/3/4 web page - http://hamvoip.org
> _______________________________________________
>
> ARM-allstar mailing list
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>
> Visit the BBB and RPi2/3/4 web page - http://hamvoip.org
>

-- 

Darrell Black ASM / AEC / AUXCOM

(517) 917-2226
GigaHacker at gmail.com
http://www.linkedin.com/in/darrellblack

73 de W8DSB
"In God we trust, all others we monitor"

A.R.S. W8DSB
GMRS WRDE739
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