Alcatel-Lucent omniacces-voip gateway User Manual
Page 2-1
2 VoIP Daughtercards
Introduction
This chapter describes the voice switching daughtercards that can be installed in Alcatel
switches to provide H.323 VoIP gateways in VoIP networks. Using ITU H.323 IP telephony
standards, the H.323 VoIP gateway converts telephone or fax calls between the circuit
switched Public Switched Telephone Network (PSTN) and packet-switched VoIP networks.
Alcatel’s H.323 VoIP gateways are typically used to handle VoIP calls as such placed across
local and wide area networks between branch offices in remote enterprises, although the
gateways are suitable for use in carrier applications, too. See Chapter 1, “VoIP Overview” for
a more in-depth description of Alcatel’s VoIP H.323 gateway operations.
switches to provide H.323 VoIP gateways in VoIP networks. Using ITU H.323 IP telephony
standards, the H.323 VoIP gateway converts telephone or fax calls between the circuit
switched Public Switched Telephone Network (PSTN) and packet-switched VoIP networks.
Alcatel’s H.323 VoIP gateways are typically used to handle VoIP calls as such placed across
local and wide area networks between branch offices in remote enterprises, although the
gateways are suitable for use in carrier applications, too. See Chapter 1, “VoIP Overview” for
a more in-depth description of Alcatel’s VoIP H.323 gateway operations.
Different VoIP daughtercards, as described below, are required depending on the telephony
interface required to transmit and receive calls in the VoIP network. Furthermore, to digitize
the VoIP calls, the daughtercards utilize digital signal processors (DSPs) containing a speci-
fied number of channels, which in turn determine the maximum number of calls that can be
placed at one time on the card.
interface required to transmit and receive calls in the VoIP network. Furthermore, to digitize
the VoIP calls, the daughtercards utilize digital signal processors (DSPs) containing a speci-
fied number of channels, which in turn determine the maximum number of calls that can be
placed at one time on the card.
The VoIP daughtercards are referred to as voice switching daughtercards and, when installed
in the switch, they are sometimes referred to as Voice Switching Modules (VSMs). Currently,
the VoIP daughtercards can be installed in either the OmniAccess 512 or Omni Switch/Router.
A blade installed in an OSR containing either one or two VoIP daughtercards of the same type
is referred to specifically as a VSX or VSX switching module (for details see VSX Switching
Module on page 2-25). For information on configuring either of these switches, refer to the
appropriate switch user manual.
in the switch, they are sometimes referred to as Voice Switching Modules (VSMs). Currently,
the VoIP daughtercards can be installed in either the OmniAccess 512 or Omni Switch/Router.
A blade installed in an OSR containing either one or two VoIP daughtercards of the same type
is referred to specifically as a VSX or VSX switching module (for details see VSX Switching
Module on page 2-25). For information on configuring either of these switches, refer to the
appropriate switch user manual.
This chapter also depicts the port pinouts and jumper settings for all of the VoIP daughter-
cards where necessary, as well as the Deadman switch, and Cross-Over toggle switches avail-
able on certain voice daughtercards. The front panels for the VoIP daughtercards, including
the front and bottom views of the cards, are shown to illustrate certain components relative to
important operations of the H.323 VoIP gateway in the switch.
cards where necessary, as well as the Deadman switch, and Cross-Over toggle switches avail-
able on certain voice daughtercards. The front panels for the VoIP daughtercards, including
the front and bottom views of the cards, are shown to illustrate certain components relative to
important operations of the H.323 VoIP gateway in the switch.
All VoIP daughtercards can be field-installed. For details on installing the cards, see also
Chapter 4, “Setup and Installation.” For details on configuring the switch to run VoIP, see
Chapter 3, “Network Dialing Schemes” and Chapter 5, “VoIP Commands.”
Chapter 4, “Setup and Installation.” For details on configuring the switch to run VoIP, see
Chapter 3, “Network Dialing Schemes” and Chapter 5, “VoIP Commands.”