Cisco Cisco IOS Software Release 12.2(27)SBC

Voice over IP—Method of transporting voice traffic over an IP network. In Voice over IP, the voice 
signal is segmented into frames, which are then coupled in groups of two and stored in voice packets. 
These voice packets are transported using a method that is in compliance with ITU-T specification 
H.323.

WFQ—weighted fair queuing. Congestion management algorithm that identifies conversations (in the 
form of traffic streams), separates packets that belong to each conversation, and ensures that capacity is 
shared fairly among these individual conversations. WFQ is an automatic way to stabilize network 
behavior during periods of congestion and results in increased performance and reduced retransmission.

See 

 for terms not included in this glossary.

Cisco and the Cisco Logo are trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and other countries. A listing of Cisco's trademarks 
can be found at 

. Third party trademarks mentioned are the property of their respective owners. The use of the word 

partner does not imply a partnership relationship between Cisco and any other company. (1005R)

Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and 
figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and 
coincidental.

© 2005–2006 Cisco Systems, Inc. All rights reserved.