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Overview for Avaya IP600 Internet Protocol Communications Server
555-233-001 — Issue 5 — November 2000
8 Enterprise Class IP Solutions
The capabilities and applications of Avaya IP600 are extended with the introduction of Enterprise Class IP
Solutions (ECLIPS). ECLIPS supports audio/voice over a LAN or WAN, and it ensures that remote workers
have access to communication system features from their PCs.
Although voice quality can and will vary based on LAN conditions, Avaya IP600 offers features that enable
management of the quality of voice communications. Avaya IP600 supports 3 Quality of Service methods:
• IP standard, Differentiated Services (DiffServ) — sets Type-of-Service (TOS) in
IP header of voice packets
• Ethernet standard 802.1 p/q — sets priority level in the layer 2 Ethernet packet
header
• UDP port range administration — ports largely dedicated for voice packets
IP trunk bypass to PSTN trunk is also supported with administrable thresholds for latency and packet loss.
This release also introduces hairpin and IP-IP direct connections, two features that make voice communications
more efficient. These features increase the efficiency of voice communications by reducing both per port costs
and IP bandwidth usage. Hairpin connections reroute the voice channel connecting two IP endpoints, so that the
voice goes through the media processor board in IP format, thereby bypassing the DEFINITY TDM bus. IP-IP
direct connections route the voice channel connecting two IP endpoints by sending the voice directly through the
LAN or WAN between the two endpoints, instead of carrying a mixed connection of IP signaling and TDM bus
signaling.
To maximize voice quality using ECLIPS, you must consider both your hardware and network configurations.
For example, with IP Softphones, you can send the audio over traditional circuit switch lines, providing high
quality voice, or over IP using LAN connections. When making calls over the LAN, voice quality will vary and
may be unacceptable if you don't tune your computers and data network.
Avaya IP600 supports a trunk configuration, four types of softphones, and three models of IP telephone, using
the TN2302AP, which is an IP-media processor circuit pack. The TN2302AP IP media processor provides H.323
trunk connections and H.323 voice processing for IP telephones. The features that use the TN2302AP also
require the TN799C C-LAN circuit pack.
Trunks
ECLIPS support the TN2302AP IP media processor, which enables H.323 trunk
service using IP connectivity between two DEFINITY systems. The H.323 trunk
groups can be configured as DEFINITY-specific tie trunks, generic tie trunks, or
direct-inward-dial (DID) “public” trunks. In addition, the H.323 trunks support ISDN
features such as QSIG and BSR.
Up to 64 Avaya IP600s can be networked through DCS with full feature
transparency. More than 1000 Avaya IP600s can be networked with near full feature
transparency. Avaya IP600s network seamlessly with DEFINITY systems.