Encyclopedia > Virtual call capability

  Article Content

Virtual call capability

In telecommunication, a virtual call capability, sometimes called a virtual call facility, is a service feature in which:

  • a call set-up procedure and a call disengagement procedure determine the period of communication between two data terminal equipments (DTEs) in which user data are transferred by the network in the packet mode[?] of operation
  • end-to-end transfer control of packets within the network is required
  • data may be delivered to the network by the call originator before the call access phase[?] is completed, but the data are not delivered to the call receiver[?] if the call attempt[?] is unsuccessful
  • the network delivers all the user data to the call receiver in the same sequence in which the data are received by the network
  • multi-access DTEs may have several virtual calls in progress at the same time.

Source: from Federal Standard 1037C

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article

... get a refund. Farian tried to reform the band as the Real Milli Vanilli, but the resulting LP Moment of Truth[?] was an utter failure. Pilatus tried to commit suicide ...