Help on Asterisk ACD

I have following setup in the Asterisk 1.4 system (Elastix 1.6): Queue: Ring Strategy: Round robin with memory Agent Timeout: 20sec Retry: 2sec Dynamic login/logout Caller position announcement Frequency: 0 Sec I encounter some weird behavior when queue distribute the call to the agent. The queue ring agent phone for 2sec (instead of 20sec) and stop , and ring for next agent. This only happen once in a while. Am looking for solution to rectify above bug. ## Deliverables 1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Employer will receive exclusive and complete copyrights to all work purchased. (No 3rd party components unless all copyright ramifications are explained AND AGREED TO by the employer on the site per the worker's Worker Legal Agreement). ## Platform Asterisk 1.4 system (Elastix 1.6-12)