Call gapping

Call gapping is a load control method for throttling telephone traffic on a telephone network when the network is overloaded.

Observations of real telephone conversations show that for much of the time one or other user is listening, not talking. During that time there is no need to transmit audio from the listener's microphone to the talker's earpiece, and when call gapping is used, the audio is not transmitted. This frees the bandwidth for other users.

A similar principle is used for discontinuous reception and discontinuous transmission in GSM mobile telephone systems.

External links

• Comparison of call gapping and percent blocking for overloadcontrol in distributed switching systems and telecommunications networks (abstract)