interoffice trunk


Also found in: Acronyms.

interoffice trunk

[¦in·tər′ȯf·əs ′trəŋk]
(communications)
A direct trunk between local central offices in the same exchange.
References in periodicals archive ?
Because Internet traffic puts a tremendous burden on the PSTN by tying up switch resources and interoffice trunks for extended periods of time, the likelihood of call blocking and compromised quality of service becomes evident in carrier networks.
By the end of 1992, Bell Atlantic had deployed fiber in 83 percent of its interoffice trunks and 66 percent of its feeder routes into neighborhoods and had deployed 1.