Unsupported Call Quality Issues

[alfie]

anyone uses 3cx here in the Philippines? Are you guys having call quality issues where sometimes the caller can't hear you vice versa? I'm using Anveo as my trunk provider and Converge as my ISP (tried PLDT and Smart as well as Globe and getting the same result). My server is hosted in the cloud (DigitalOcean) using the latest 3cx version. any recommendations and pointers on which settings or configuration should I check for troubleshooting? Only Philippines users are having this call quality issues. US and other countries per their experience were all good. thank you.

 

[leejor]

So, local calls, to Philippine numbers have the issue, but calls elsewhere, using the same provider, are fine

If that is the case, I would start by getting your provider involved.

 

[alfie]

@leejor what I mean is that if the calls are made from PH, they are getting those call quality issues. Users are using STUN and 3CX Desktop App only.

 

[leejor]

Are the users, in the Philippines all at the same location? How many users are we talking about?

Did this issue just start, or has it been going on since day one?

Have you tried using the 3CX App (tunnel) over Wifi, from the same location, to see if those calls still have the same issue?

It could be a local network issue, possibly because of the use of STUN. Have you considered trying an SBC at the location?