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WMS version 4.03 introduces significant improvements in terms of security, network resilience and audio quality.

In case you are experiencing issues with media processing, you can switch to old behavior. To switch to pre WMS 4.03 behavior, follow the steps below: 

  1. Access PBX via SSH
  2. Edit the file: /rw2/etc/kamailio/host_specific_custom.cfg by adding the following parameters: modparam("pv", "varset", "drtp_decision_maker=s:callweaver")
  3. Restart SIP proxy: /etc/init.d/kamailio restart
  4. Edit the file /etc/callweaver/sip-general-custom.conf by adding the following parameter: drtp_decision_maker=yes
  5. Enter the following command in Callweaver's CLI: sip reload

Useful links: