Avaya IPO R9 MBL TO PWR USER UPG 5 ADI LIC 275644 Manuel D’Utilisation
Codes de produits
275644
Product Description
IP Office 9.0
IP Office 9.0
© 2014 AVAYA All rights reserved.
Page 278
Issue 27.02.0 (Monday, January 06, 2014)
SIP Endpoint Support
Session Initiation Protocol (SIP) is an open signaling protocol for establishing any kind of real-time
communication session. The communication session can involve voice, video, or instant messaging, and can
take place on one of many devices that people use for communicating: laptop computer, PDA, cell phone, IM
client, IP phone, and so on. SIP has been developed in the Internet Engineering Task Force (IETF) by common
participation from various vendors, including Avaya.
communication session. The communication session can involve voice, video, or instant messaging, and can
take place on one of many devices that people use for communicating: laptop computer, PDA, cell phone, IM
client, IP phone, and so on. SIP has been developed in the Internet Engineering Task Force (IETF) by common
participation from various vendors, including Avaya.
Avaya IP Office supports SIP for telephony functions to enable the usage of standard based SIP endpoints for
Voice and Fax communication. In pure SIP systems, IP Office expands the feature set beyond the SIP
standard, offering a wealth of IP Office features also on SIP endpoints delivering a feature rich system that a
pure-SIP server based on the SIP standard only can’t deliver. With that, IP Office delivers the best of both
worlds, supporting standard based IP telephones while delivering a wealth of features consistently between
SIP, digital and Avaya IP endpoints.
Voice and Fax communication. In pure SIP systems, IP Office expands the feature set beyond the SIP
standard, offering a wealth of IP Office features also on SIP endpoints delivering a feature rich system that a
pure-SIP server based on the SIP standard only can’t deliver. With that, IP Office delivers the best of both
worlds, supporting standard based IP telephones while delivering a wealth of features consistently between
SIP, digital and Avaya IP endpoints.
IP Office SIP endpoint implementation is built on two major SIP components: SIP User agents, and SIP Server
components.
components.
SIP Components
SIP Endpoints (User Agents)
User agents (UAs) are applications in SIP endpoints (such as a SIP phone, cell phone, PDA, or workstation)
that interface between the user and the SIP network.
that interface between the user and the SIP network.
SIP Servers
IP Office has implemented the required functionality of the SIP servers mentioned below not only to provide
SIP endpoint support but also to allow full interoperability between SIP endpoints, other IP telephones based
on H.323, Digital and Analog telephones as well as IP Office trunks (Analog, digital or SIP based)
SIP endpoint support but also to allow full interoperability between SIP endpoints, other IP telephones based
on H.323, Digital and Analog telephones as well as IP Office trunks (Analog, digital or SIP based)
SIP servers provide centralized information and enablement services in a SIP ecosystem. The core SIP servers
and their functions are summarized here. IP Office provides the required the features of the following two
servers for Voice and FAX communication.
and their functions are summarized here. IP Office provides the required the features of the following two
servers for Voice and FAX communication.
·
Registrar Server
When SIP IP telephones come online, they need to make sure that others are aware that they’re
available to take and make calls. The Registrar authenticates and registers the IP phone (often
directly related to a specific user) when it comes online, and then stores information on the
telephones logical identities.
When SIP IP telephones come online, they need to make sure that others are aware that they’re
available to take and make calls. The Registrar authenticates and registers the IP phone (often
directly related to a specific user) when it comes online, and then stores information on the
telephones logical identities.
·
Proxy Server
A proxy server takes SIP requests, processes them, and passes them downstream while sending
responses upstream to other SIP servers or devices. A proxy server may act as both a server and a
client, and can modify a SIP request before passing it along. A proxy is involved only in the setup and
teardown of a communication session. After user agents establish a session, communications occur
directly between the parties.
A proxy server takes SIP requests, processes them, and passes them downstream while sending
responses upstream to other SIP servers or devices. A proxy server may act as both a server and a
client, and can modify a SIP request before passing it along. A proxy is involved only in the setup and
teardown of a communication session. After user agents establish a session, communications occur
directly between the parties.
Functionality of the following two SIP servers are generally available by IP Office using existing IP Office
functionality. Therefore, while functionality is provided, e.g. allowing hot desking (also for users using a SIP-
endpoint) in a small community network, a consistent methodology between SIP and non SIP endpoints is
used to deliver those features
functionality. Therefore, while functionality is provided, e.g. allowing hot desking (also for users using a SIP-
endpoint) in a small community network, a consistent methodology between SIP and non SIP endpoints is
used to deliver those features
·
Location Service
As users roam, the network needs to be continually aware of their locations. The location service is a
database that keeps track of users and their locations. The location service gets its input from the
registrar server and provides key information to the proxy and redirect servers. IP Office provides hot
desking support, delivering a similar functionality but working consistently between SIP and non SIP
endpoints.
As users roam, the network needs to be continually aware of their locations. The location service is a
database that keeps track of users and their locations. The location service gets its input from the
registrar server and provides key information to the proxy and redirect servers. IP Office provides hot
desking support, delivering a similar functionality but working consistently between SIP and non SIP
endpoints.
·
Redirect Server
If users are not in their home domains, sessions bound for them needs to be redirected to them.
If users are not in their home domains, sessions bound for them needs to be redirected to them.
The redirect server maps a SIP request destined for a user to the device "closest" to the user. In IP
Office, call forwarding and Follow me functionality is used to provide again consistent functionality
between all type of endpoints.
Office, call forwarding and Follow me functionality is used to provide again consistent functionality
between all type of endpoints.
Supported functionality for SIP endpoints in IP Office
SIP endpoints are supported on IP Office for Voice (Audio) and Fax (T.38) communication.
This allows the usage of standard compliant IP telephones using the open SIP standard, giving customers a
choice of endpoints of different manufacturers including special purpose devices like conference telephones,
hotel telephones or terminal adapters.
choice of endpoints of different manufacturers including special purpose devices like conference telephones,
hotel telephones or terminal adapters.