As a result of recent developments, can we select GSM-HR as the channel type when we select GSM as the codec? By default, the GSM codec operates as FullRate. Is there a way to set it to HalfRate, or is there a different method to operate it as HalfRate? Does Asterisk support this?
There is no built-in support for it.
Thank you for your reply @jcolp. So, is it possible to run Asterisk at half rate using an external patch or source?
I’m not aware of any changes, but Asterisk is open source and it’s pluggable so someone could probably do so if they wanted.
I don’t understand “recent developments”. The general trend is the other way.
What are the developments? A more modern codec might provide a better solution.
By “recent developments,” I mean, when I looked at the forum, it was stated that GSM-HR-08 support was not available in 2019. The point I wanted to address here was whether this was still the case in the current version(asterisk 22.5). I’m working on Osmocom, so my configuration is GSM-related. My Osmocom configuration is set to GSM-HR. Therefore, I want to use Asterisk as GSM half-rate.
After some research, I found a few resources.
I’ll look into implementing these resources in asterisk. I’ve always used Asterisk in its raw form, I’ve never made any patches or add-ons. I can try implementing a libgsmhr based codec plugin for Asterisk.
If anyone has done this before, I would be very grateful if you could help me out. Thanks.
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