In telecommunications the automatic call-back is a computer telephone function which allows the user by the engaged addressee’s line or in the other case of the subscriber’s inaccessibility indicating the system to save the number of the called subscriber and make the call when the line will be available or when the called number is not engaged.
Petsow Communications Limited [formerly Adesemi Nigeria Limited] started full operations on August 10, 2002 with five points of presence in five states of Nigeria namely: Lagos, Rivers, Cross Rivers, Abia its operational and administrative headquarters an
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