Call processing
100 Avaya Application Solutions IP Telephony Deployment Guide
IP tie trunks
IP tie trunks are used to connect switches to one another. When an IP trunk is used to
interconnect two switches, the trunk can also carry standard (QSIG) and proprietary (DCS+)
signaling for interswitch feature transparency. The location of each other node (switch) in the
network is administered, and node selection is based on the dial plan and call routing features
such as AAR/ARS.
H.323 or SIP tie trunks are administered as a new type of trunk group. Instead of administering
ports as members of the trunk group, only the number of channels must be specified. Each
channel is analogous to a member trunk. In addition, an IP tie trunk can be made a member of a
signaling group so that a virtual D-channel can be administered and used to carry feature
transparency information.
Trunk signaling
Several variations of IP signaling must be accommodated for the variety of trunks supported by
Communication Manager. These are specified as options in the trunk group administration.
When the IP trunk is used as a tie trunk to another vendor’s switch, gateway, or gatekeeper,
Communication Manager sets up a separate TCP connection for each call.
SIP
SIP stands for Session Initiation Protocol, an endpoint-oriented messaging standard defined by
the Internet Engineering Task Force (IETF). SIP is a text-based protocol, similar to HTTP and
SMTP, for initiating interactive communication sessions between users. Such sessions include
voice, video, instant messaging, interactive games, and virtual reality.
As implemented by Avaya for Communication Manager release 2.0, SIP "trunking" functionality
will be available on any of the Linux-based media servers (S8300, S8500 or S8700). SIP
trunking allows Avaya Communication Manager to communicate with SIP endpoints and
gateways across an IP network. In addition, Avaya Communication Manager supports SIP
endpoints, including the Avaya 4602 SIP Telephone and Avaya IP Softphone Release 5. In
addition to its IP telephony capabilities, IP Softphone R5 will also include Instant Messaging
(IM) client software, which is a SIP-enabled application that connects to the Avaya Converged
Communication Server for IM control.
Содержание Application Solutions
Страница 1: ...Avaya Application Solutions IP Telephony Deployment Guide 555 245 600 Issue 3 4 1 June 2005 ...
Страница 20: ...About This Book 20 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 21: ...Issue 3 4 1 June 2005 21 Section 1 Avaya Application Solutions product guide ...
Страница 22: ...22 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 74: ...Avaya Application Solutions platforms 74 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 106: ...Call processing 106 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 124: ...Avaya LAN switching products 124 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 139: ...Issue 3 4 1 June 2005 139 Section 2 Deploying IP Telephony ...
Страница 140: ...140 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 186: ...Traffic engineering 186 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 204: ...Security 204 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 214: ...Voice quality network requirements 214 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 228: ...Avaya Integrated Management 228 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 239: ...Reliability Issue 3 4 1 June 2005 239 Figure 69 S8700 Media Server in a high reliability configuration ...
Страница 274: ...Reliability and Recovery 274 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 275: ...Issue 3 4 1 June 2005 275 Section 3 Getting the IP network ready for telephony ...
Страница 276: ...276 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 350: ...Implementing Communication Manager on a data network 350 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 356: ...Network recovery 356 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 366: ...Network assessment offer 366 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 367: ...Issue 3 4 1 June 2005 367 Appendixes ...
Страница 368: ...Appendixes 368 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 394: ...Access list 394 Avaya Application Solutions IP Telephony Deployment Guide ...
Страница 414: ...DHCP TFTP 414 Avaya Application Solutions IP Telephony Deployment Guide ...