Hi guys,
i have a telephony system that using only alaw/g711a(because for that system we only have license for that codec)
the problem im having is my trunk provider has suddenly changed to g729 codec, which i’m having an issue where the call receiver cant hear me.
so my current telephony system flow to callout is
sofphone server( only alaw) > asterisk (can choose multiple codec) > trunk provider( which using g729)
so my question is, anything can be done on asterisk side , so we can translate the codec of alaw to g729 when reach the trunk provider?
Somewhat off topic, g729 is a 20+ year old codec that IMO sounds awful, especially when the remote party is using a mobile phone with its own compression codec. If at all possible, get a better trunking provider. What country(ies) do you call? Landlines or mobiles? Do you need incoming service as well? If appropriate for your destinations, take a look at Voxbeam (UK based) or AnveoDirect (US based). Both offer a small credit at signup, so you can test without making a payment.