Glossary

ACO – Additional Call Offering
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

ACO – Additional Call Offering

An ISDN feature that allows multiple calls to be placed simultaneously to the same telephone number. A serving switch is programmed with the number of lines on the receiving telephone equipment. The switch will offer an additional call if there is a line available to accept it.


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