Avaya IP Telephony Guía de configuración Pagina 29

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 222
  • Tabla de contenidos
  • SOLUCIÓN DE PROBLEMAS
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 28
Chapter 1 Introduction 29
IP Telephony Configuration Guide
Large (G.723: .18 seconds; G711/G.729: .15 seconds)
QoS routing
To minimize voice jitter over low bandwidth connections, the Business Communications Manager
programming assigns specific DiffServ Marking in the IPv4 header of the data packets sent from
IP telephones.
The DiffServ Code point (DSCP) is contained in the second byte of the IPv4 header. DSCP is used
by the router to determine how the packets will be separated for Per Hop Behavior (PHB). The
DSCP is contained within the DiffServ field, which was known as the ToS field in older versions.
The Business Communications Manager assigns Expedited Forwarding (EF) PHB for voice media
packets and the Class Selector 5 (CS5) PHB for voice signaling (control) packets. On the Business
Communications Manager, these assignments cannot be adjusted.
The Business Communications Manager system performs QOS routing, but if one or more routers
along the network route do not support QOS routing, this can impact voice quality. Business
Communications Manager system QoS can also be configured so that the system reverts to a
circuit-switched line if a suitable QoS cannot be guaranteed.
Warning: BCM version 3.5 and newer software only supports H.323 version 4. To
support this, all Business Communications Managers running BCM version 3.0.1 or
earlier software, which are on a network with a Business Communications Manager
running BCM version 3.5 or newer software, must either be upgraded to BCM version 3.5
or newer software or apply a QoS patch (3.0.0.25 or later) to support this version of H.323.
Vista de pagina 28
1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 221 222

Comentarios a estos manuales

Sin comentarios