Why am I being billed for two simultaneous calls?
Problem:
When a user disconnects a call and quickly attempts to make another call, the first call is not disconnected and billing continues on both calls. In actuality, the first call is put on hold where billing continues while the second call is running simultaneously.
Solution:
Most SIP devices support simultaneous calls via the same line to enable the user to utilize "hold" type functions. Such features like three way calling and call waiting require a call to be placed "on hold" while the second call is initiated. You can disable such functions by accessing the device configuration settings and turning off the service that offers the ability to "flash" and get the stuttered dial tone that allows for a "three way call" or "call waiting". Once you disable these settings, this problem should not re occur. If you are not sure how to do this, please review the device's manual for exact instructions.