Fresh installation of uelastix doesn't work

[gershte]

After fresh installation of uElastix on Raspberry Pi, I was able to register few extensions. Cli command sip show peers shows that all extensions are registered. But when I try dialing any number I receive 403 Forbidden from the server. From log file

[Apr 27 21:35:51] ERROR[1225][C-00000009]: rtp_engine.c:259 ast_rtp_instance_new: No RTP engine was found. Do you have one loaded?

[Apr 27 21:35:51] NOTICE[1225][C-00000009]: chan_sip.c:25246 handle_request_invite: Failed to authenticate device "102"<sip:[email protected]>;tag=5e205b62

Short investigation shows that module res_rtp_asterisk is missing.

How can I fix this problem?

 

[Redfone]

Here are some troubleshooting tips from a similar module issue;
- run module show to find out which modules are loaded;
- check the modules directory for rtp handler modules;
- check the log files for errors during startup;
- try manually loading the relevant modules and look for errors.