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Brekeke PBX Wiki

  1. Brekeke PBX basic Info
  2. Security
  3. Update & Upgrade
  4. Configuration
  5. Brekeke PAL option
  6. Integration with Zoho Products
  7. Add-ons
  8. Troubleshooting
    1. How to get browser console logs
    2. Brekeke PBX License and Activation
    3. Starting Up
    4. Log in
    5. Registering issue
    6. Call Transfer
    7. Voicemail
    8. Trouble with Calling
      1. Call is not connected (no ringing tone)
      2. Disconnect suddenly
      3. Codecs and Protocols
      4. No INVITE packet from ITSP after restarting Brekeke PBX
      5. Disconnected when callee answers
      6. Brekeke PBX returns 486 for the inbound calls after updating
      7. Number of concurrent calls can not increse on Linux
      8. One-way call, and no voice at all
      9. Poor sound quality for uploaded sound files
  9. Developer's Guides
  10. User's Guide
  11. Version History

Number of concurrent calls can not increse on Linux

If Brekeke PBX is running on Linux system, especially in a large-scale system, you may face the issue that the number of concurrent calls can not increase, even when the system has enough hardware resources.

It may be caused by some limitations of Linux OS.

In middle-large scale system which has more than 250 concurrent calls in normal operation,

You need to check and increase the limitations according to the following instructions.

File descriptor limit on Linux
Thread Limit
Yes No
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