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Brekeke SIP Server Wiki

  1. Brekeke SIP Server Basic Info
  2. Security
  3. Update & Upgrade
  4. Configuration
  5. Troubleshooting
    1. How to access to the Embedded Database
    2. How to check dropped packets on Linux
    3. How to get debug logs 
    4. How to get jstack information
    5. Brekeke SIP Server License and Activation
    6. Starting up
    7. Registering problem
    8. Trouble with SIP UAs
    9. Trouble with Calling
      1. 401 Unauthorized, 407 Proxy Authentication Required
      2. 404 Not Found, 484 Address Incomplete, 603 Decline
      3. 415 Unsupported Media Type, 488 Not Acceptable Here
      4. 482 Loop Detected, 483 Too Many Hops
      5. 486 Busy Here
      6. 603 Packet-Too-Big
      7. Call drops after getting connected
      8. Call drops after getting connected and caller hears ring back tone
      9. Call drops; only one-side voice; no voice
      10. Callee not ring, caller hears ring tome
      11. Disconnected during a call
      12. Neither a busy tone nor a ring back tone
      13. UA1 calls UA2, UA2 does not ring
      14. One way call
      15. Other response codes
      16. Port Allocation failed
      17. Can not find a response code
      18. Poor sound quality
        1. Bandwidth, quality, or Network equipments
        2. Codecs and protocols
        3. Stress on Server
        4. Sound quality on different types of phone
    10. Thread resources may not be released when it is integrated with Responder5
  6. Developer's Guide
  7. Version History

Poor sound quality

 
  • You may experience poor sound quality when CPU has too much stress or virtual memory is used while RTP is being transmitted on a machine which Brekeke SIP Server is working.
  • Please make sure that suspend or power save mode is disable on the machine where Brekeke SIP Server is running.
  • Calculate your network bandwidth –150Kbps is necessary for each ULAW connections. 
  • Sound quality is also known to worse in network conditions where packet loss can easily occur, even if you have enough bandwidth.
    • Please ensure the machine have enough RAM, and that memory swapping doesn’t occur on the machine Brekeke SIP Server is installed.
    • On Windows, if your machine have enough RAM, and disable virtual memory, disk swap will be disabled.
    • Do not use power save mode or suspend your OS
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« Can not find a response codeBandwidth, quality, or Network equipments »
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