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Avaya Application Solutions platforms
Remote G700 or G350 Media Gateway - The S8700 series Media Server can provide the call
processing features for a remote G700 or G350 media gateway over an H.248 link. In this
configuration, S8700 can support up to 250 G700 or G350 Media Gateways. An S8300 media
module that is located in a G700 or G350 Media Gateway in a remote location provides
survivability when the primary controller is inaccessible. For more information, see
Local Survivable Processor (LSP)
Center Stage Switch
The Center Stage Switch (CSS) is a connection hub that provides Port Network communication.
A CSS can be used when the Multi-Connect Solution that is composed of more than three Port
Networks. Often, the CSS is incorporated into smaller configurations to allow for growth. The
CSS consists of from one to three switch nodes (SN), which reside in a Port Network carrier.
SNs are composed of one or two switch node carriers, depending on whether the solution is
being duplicated for critical reliability. Port Network expansion depends on internal SN-to-SN
traffic, according to the following guidelines:
1 SN expands from 1 to up to 15 PNs.
2 SNs expands to up to 29 PNs.
3 SNs expands to up to 44 PNs.
ATM network
The Asynchronous Transfer Mode (ATM) switch is a replacement option for the CSS, or for the
direct-connect switch. Several Avaya ATM switch types can provide Port Network connectivity.
Non-Avaya ATM switches that comply with the ATM standards that are set by the European
Union can also provide Port Network connectivity.
With S8700 Multi-Connect, ATM-Port Network Connectivity (ATM-PNC) allows any ATM switch
or ATM network that complies with specified standards and capacities to serve as the means to
connect to the PN. In this type of configuration, the ATM switch or network replaces the CSS.
ATM-PNC is used to connect port networks within a single switch. The WAN Spare Processor
(WSP) is not supported. One ATM supports up to 64 PNs.
60 Avaya Application Solutions IP Telephony Deployment Guide
on page 40.
S8300 as the
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