I am new with ip telephony, I have set up a pbx for a small business with 5 extensions and 2 lines I use 2 SPA-3102 (1 Fxo and 1 Fxs each one) and for the other extension I use the 3cx softphone. I have 3 problems: 1.When I answer a call it takes like 3 to 5 seconds to actually take it, the other phones even ring 1 or 2 times more. 2.From time to time I cannot make calls due to a gateway error the leds on the SPA'S look like if someone was using them. 3.Clients call my cellphone telling me that both lines are occupied but no one is using the lines. Sometimes the errors 2 and 3 occurs together and the way to fix them is reseting the pbx and the gateways and wait some time. Please help me!