Citel 6000 Guía Del Usuario

 

PBXgateway

™ 

& EXTender

TM

 

6000 System Administrator’s Guide

 

93

 

The PBXgateway software supports the Type of Service packet prioritization protocol.  When an 
EXTender is running in RVPoIP mode the system administrator can choose to use Type of 
Service to prioritize voice packets within the network (note that all nodes in the network must be 
configured to prioritize traffic based on Type of Service in order for this feature to function 
properly). 
 
Each RVPoIP voice packet contains a ToS (type of service) byte.  Within this byte are three bits, 
which are the class of service field.  The class of service field is always automatically set to low 
delay for RVPoIP voice packets by the EXTender.  Also within the ToS byte are three bits for 
Differentiated Services.  With the Type of Service implementation the system administrator is 
given the option of choosing how the 3 Type of Service bits are set.  These bits will tag the traffic 
among other packets that have the class of service field set to low delay, according to the way the 
customer has configured their network to prioritize Type of Service traffic.