HiPath 8000 V3.1
Open IT-Based Communications System
The essence of HiPath 8000 is its architecture, which serves as the
foundation supporting the multimedia pillars of Unified
Communications (UC) and Communications Embedded Business
Processes (CEBP). As such, the HiPath 8000 provides a unique
blend of UC Features, Openness, Scalability, Resiliency,
Extensibility and Manageability.
Communication for the open minded
Siemens Enterprise Communications
The HiPath 8000 Solution Landscape
HiPath 8000 V3.1 is a native SIP real-time IP
system designed to provide enterprises
with a robust service creation and delivery
infrastructure. Scalable to as many as
100,000 users per single system, and a virtually unlimited number of users in a large
network, the HiPath 8000 V3.1 can be deployed and managed as a world-class enterprise solution. But more than that, Unified
Communications as a Service (UCaaS) becomes a reality, whether offered by the customer, by a managed service provider, or by
While its rich carrier heritage allows the
HiPath 8000 to support multiple protocols,
the SIP protocol is the fundamental architectural approach used in HiPath 8000
V3.1. As SIP support for telephony and
other real-time services such as video,
multimedia, multimodal, collaboration and
presence continues to become commonplace in Next Generation Networks (NGN),
the HiPath 8000 V3.1 works seamlessly
with a variety of other products and applications, delivering to the customer costeffective solutions with a level of reliability
exceeding that of other enterprise CPE
Best for Your Business
HiPath 8000 offers a key solution at the
infrastructure level, interworking with a
number of components to provide Voice
over IP communications to the enterprise.
The HiPath 8000 solution is in turn part of a
broader solution set in the customer’s
environment, and as such, works with a
variety of applications to enhance and support the customer's business practices.
The entire HiPath portfolio is optimized for
the demands of very large businesses —
easy to put into practice, reliable in performance, and easy to use. With it, you
become even more efficient.
With HiPath, businesses benefit from the
investments already made in their customers, partners, employees, and communications infrastructure. HiPath 8000 V3.1
further demonstrates how SIP platforms
can reduce communication costs. The
separation of voice and data no longer
exists. Only one infrastructure needs to be
maintained. Processes and applications are
more reliable and can be shared across the
With HiPath 8000 V3.1, you achieve convergence without risk. Existing HiPath systems
can be utilized and integrated into the
overall solution. New applications and solutions can easily be integrated. Thus, businesses stay in touch with technology and
will continue to profit from the benefits of
SIP-based systems in the future.
You decide when, where, how, and to what
extent to invest in innovative technology.
You can choose from a broad range of IP
convergence platforms, optiPoint and
OpenStage phones, and an optiClient
solution (softclient). You set the pace in
accordance with your demands and ideas.
Benefits of Installing the
HiPath 8000 V3.1 System
High availability and cost effective solution for enterprises in the medium to very
large range
Carrier-grade reliability and resiliency
Scalability to tens of thousands of users
Open Unified Communications Platform
– Any media, any time, anywhere
– Support of open standards
Excellent CAPEX and OPEX efficiencies of
Seamless migration path from converged IP to SIP
Web Services architecture
– Access for end-user self-management
– Integration with other Web-based
applications and management
Global Licensing
Batch command file and mass provisioning interface
Unified Communications as a Service
High-Performance IP
HiPath 8000 V3.1 offers a wide range of
options for transforming your corporate
communications solution into real-time IP
communication. You can reduce your IP
infrastructure costs even further by using
high-performance gateways and standardized compression procedures. HiPath 8000
V3.1's “Any-to-Any” IP payload switching
ensures that you get the highest availability
and quality.
Resiliency, Redundancy and
HiPath 8000 software runs on highly
reliable, fault-tolerant industry-standard
servers under the Linux SLES 9 operating
system. Clustering software protects
against hardware and software failures, and
controls failover of redundant Ethernet
links and cluster nodes (redundancy is
optional for systems below 5000 lines). By
ensuring that all functions and applications
maintain unrestricted availability, HiPath
8000 provides a new level of quality in IP
HiPath 8000 controls and supervises call
setup; the actual voice traffic is carried over
the LAN/WAN between endpoints. Administration/signaling and billing traffic is
carried over a redundant pair of network interface cards through redundant, interconnected L2/L3 switches that provide
redundant networking.
The two servers may be collocated or geographically separated. If geographically
separated, the connections between the
two nodes may be established at the layer 2
level, using a tunneling protocol such as
L2TP, or at the layer 3 level using IP routing
HiPath 8000 utilizes Fujitsu Siemens Computers (FSC) PRIMECLUSTER clustering software and Resilient Telco Platform (RTP)
middleware to provide a highly reliable platform which can operate in both active-active and active-standby mode, and can
switchover automatically without loss of active calls or billing records.
HiPath 8000 also provides a Survival
Authority (SA), a separate component
which normally resides on the HiPath 8000
Assistant administration server. The SA can
assist in determining the proper cluster response in the event that communication
between the two nodes is severed due to a
network failure. Activation of the Survival
Authority is optional in the case of collocated cluster nodes, but required in the case of
geographic separation of the nodes.
HiPath 8000 V3.1
Solution Landscape
Application Network Features that are
new in HiPath 8000 V3.1 include the
The HiPath 8000 V3.1 system is the ideal
communication solution for large to very
large enterprises. The HiPath 8000 communication architecture is designed for enterprises with distributed, remote sites, as well
as for companies with campus-style structures.
With HiPath 8000, businesses of any size —
and across multiple locations — can use all
system features and applications
universally. HiPath 8000 can also incorporate existing systems, such as HiPath 4000,
in the overall solution, as well as third-party
Many new capabilities are added to the
HiPath 8000 V3.1. They include new and
enhanced features in the softswitch, new
configurations, new endpoints, gateway
and media server choices, as well as an
expanded list of applications for customers
to choose from.
HiPath 8000 V3.1 Features
The following new architectural features
are available in HiPath 8000 V3.1:
● Business Group Capacity Increase
● Emergency Calling Enhancements —
Improved Callback Capability to the
Location of the Emergency
● Geographic Node Separation with Layer3 Cluster Interconnect
● HiPath Media Server Enhancements
– Administration via HiPath 8000
– Media Encryption
● Increased SIP phone registration rate for
faster system startup
● Session Timer for Keysets
● Support for Outbound SBC/Proxies
HiPath 8000 V3.1 also provides the following administration and serviceability
Call Admission Control—Call Detail Recording Enhancements
– IP Addresses and FQDNs
– Call Forwarding - Dependable (CFD)
Database Versioning
ENUM Performance and Functionality
ENUM Provisioning via HiPath 8000
Generic Export Mechanism—Deletion
File Queries by Business Group
Numbering Plan and Translation
Provisioning of Multiple Digit Maps
Real-Time Trace (RTT) Enhancements
– Selective Call Tracing
– Offline GUI for Call Trace Analysis
Remote Patching
Answer Timeout Timer on CSTA Interface
Call Admission Control
– Tree and Mesh Network Topologies
– Codec Restriction for Limited Bandwidth WAN Connections
Gateway Rerouting Enhancements
High-Definition Videoconferencing
HiPath ProCenter V7.0 R2 Integration
HiPath Xpressions V5.0 R2 Integration
Integrated Electronic Surveillance
Enhancements—CALEA and ETSI
– Call Data Message Enhancements
– Administration Enhancements
SIP-Q Enhancements
– Improved Displays for Networked
– Media Encryption
Security features that are new in HiPath
8000 V3.1 include:
Media Encryption Enhancements
Operating System Security Enhancements for LINUX
New end-user features and functions of
HiPath 8000 V3.1 include the following:
Call Forwarding—Dependable (CFD)
Display Enhancements
– Repeat Dialing List Name Display
– SIP-Q Networked Party Displays
Improved Feature Execution for
Unreachable Subscribers
Call Completion on Busy Subscriber/No
Last Incoming Number Redial
Last Outgoing Number Redial
Support for Multiple Contacts
HiPath 8000 V3.1
System management tools for HiPath 8000
V3.1 include the following:
HiPath 8000 Assistant
RTP Command Line Interface (CLI)
Deployment Service (DLS)
HiPath 8000 Assistant
For all user configurations, the HiPath 8000
Assistant is the strategic Web-based tool for
administering the HiPath 8000 V3.1. For
installations with fewer than 5000 users,
the Assistant can be installed on the same
server as the HiPath 8000 software and the
integrated HiPath Media Server.
In installations with more than 5000 users,
it is necessary to install the HiPath 8000
Assistant, as well as the HiPath Media
Server, on a separate, external server.
RTP Command Line
HiPath 8000 system provisioning and
administration can be performed using a
traditional command line interface (CLI).
Features/functions which must be activated
or provisioned only once are still managed
using the RTP CLI, e.g., tracing and other
maintenance functions. The RTP CLI is always accessible via a secure shell, and can
be accessed via Assistant or directly from
the maintenance port of the HiPath 8000.
Deployment Service
The Deployment Service (DLS) is a management tool used for administering workpoints in the HiPath 8000 network. DLS is a
Java-based application with a Web-based
user interface, and is functionally integrated into the HiPath 8000 Assistant.
The DLS is required to support the mobility
feature on Siemens SIP endpoints. It provides options to migrate existing workpoints and to implement mobile user
standards. Other important functions of the
DLS include software deployment, inventory data management, configuration management, and Plug and Play support.
HiPath 8000 V3.1
Media Servers
The HiPath 8000 V3.1 offers the following
media server options:
RadiSys Convedia CMS-3000 media
server for up to 360 ports
HiPath Media Server
for up to 100 ports (on the HiPath 8000)
or 150 ports (on an external server)
Multiple media servers can be employed for
large installations or for added reliability.
RadiSys Convedia CMS-3000
The RadiSys Convedia CMS-3000 is a turnkey, high performance media server for
enterprise-sized HiPath 8000 network
HiPath Media Server
The HiPath Media Server is an integral part
of HiPath 8000 systems for medium-size
enterprises supporting 300-5000 subscribers. This software-only server solution provides tones, announcements and user
prompts to support the functionality of
HiPath 8000 features. Announcements are
generated in the language requested by the
HiPath 8000, or in a configurable default
language. The HiPath Media Server also
supports redundancy and station controlled
With HiPath 8000 V3.1, the HiPath Media
Server supports media encryption using
Secure RTP (SRTP) and the MIKEY key
management protocol.
The RG 8700 V1.2R1 software adds SIP-Q
functionality for connectivity to HiPath
4000 and third party products which
support QSIG.
The HiPath Media Server can be installed on
the same server as the HiPath 8000 system
software for systems with under 5000 subscribers, requiring no additional hardware,
or on an external server (the same server as
HiPath 8000 Assistant), or on a separate,
standalone server, or on any combination
of these options.
The RG 2700 gateway, designed
for organizations with a head
office and small- to mediumsize branch offices, is used for
cross-site networking. This SMG includes a
built-in SIP proxy that provides continued
inbound and outbound calling service for
up to 30 subscribers when the connection
to the central HiPath 8000 system is temporarily lost.
HiPath 8000 V3.1
Media Gateways
To access the public switched telephone
network (PSTN), the HiPath 8000 V3.1
solution provides the following gateway
HiPath 4000 Survivable Media Gateway
RG 8700 Survivable Media Gateway
RG 2700 Survivable Media Gateway
Mediatrix gateways
Survivable Media Gateways (SMG)
In branch offices with a HiPath
4000, survivability is made
possible through the use of a
Comdasys Convergence SIP
proxy. This proxy takes the registrations
from the phones and the HiPath 4000 gateway and passes them to the HiPath 8000 via
the WAN. If the HiPath 8000 drops out or
does not respond in a timely manner, the local SIP proxy takes over and tries to mediate
the calls, including routing PSTN calls
through the HiPath 4000 gateway. When
connectivity to the HiPath 8000 is re-established, the proxy resumes forwarding the
requests to the HiPath 8000 as usual.
The RG 8700 provides a
complete Siemens solution for
HiPath 8000, as well as basic
survivability for branch offices
in the event of network failure. Survivability, a standard feature of the RG 8700 gateway, is accomplished through the use of SIP
phones that are dual-registered with the
HiPath 8000 and the RG 8700. If the RG
8700 can no longer communicate with the
HiPath 8000, it switches to survivable
mode, allowing the dual-registered SIP
phones access to the PSTN trunks and, conversely, allowing incoming calls from the
PSTN to be distributed directly to the SIP
The RG 8700 family of Survivable Media
Gateways comprises 3 models that interwork with HiPath 8000 V3.1: RG 8716 with
up to 16 T1/E1 spans, RG 8708 with up to 8
T1/E1 spans, and RG 8702 with up to 2 T1/
E1 spans. No license is required.
Small Branch Office (SBO) Gateways
These gateways connect endpoints in a small office scenario.
Gateways from Mediatrix, with
optional survivability provided
by Comdasys, connect these locations to
the HiPath 8000.
Customers can also continue to use their
previously installed third-party SIP gateways with the HiPath 8000. The supported
functionality depends on how these
gateways adhere to the relevant SIP standards. Interoperability testing may be
required to confirm feature behavior. The
HiPath Ready Lab is available to vendors
seeking to certify their products with the
HiPath 8000.
SIP Endpoints
The following Siemens SIP endpoints are
OpenStage 20/40/60/80
optiPoint 410 S and 420 S
optiPoint 150 S
optiPoint WL2 professional S (wireless)
optiClient 130 S
Selected third-party phones may also be
certified through the Siemens Ready Lab.
OpenStage 20/40/60/80
OpenStage™ is the name for Siemens' new
generation of IP phones, setting the benchmark for open, unified communications in a
productivity-enhancing business tool.
OpenStage phones have an intuitive and innovative interface that is available in a wide
variety of languages; all models are fully
compliant with IEEE 802.3af Power Over
Ethernet (PoE) standard.
The OpenStage family of SIP telephones
comprises four models:
optiPoint Phone Family
OpenStage 20, the economy model, is a
full-featured speakerphone and a universal
solution for efficient and professional
The feature that distinguishes the optiPoint
410 S / 420 S family of SIP phones, in particular, is the wide range of customizable
models, from the optiPoint 410 entry S for
basic telephony to the optiPoint 420
advance S for high-volume callers with
sophisticated needs. A total of five different
telephone models are available to suit all
workstation requirements. A choice of expansion options and accessories provide
the ability to accommodate future needs.
OpenStage 20
optiPoint 410 S and 420 S
optiPoint 150 S
OpenStage 40, the flexible office phone, is
customizable for various workplace environments – desk sharers, work teams, call
center staff, and so on.
OpenStage 40
The optiPoint 150 S phone is a cost-optimized entry level device for voice over IP
telephony, suited for environments where
basic business features are required, such as
reception areas, corridors, and production
optiPoint WL2 professional S
The SIP-compliant optiPoint WL2 professional S is a single-line WLAN handset that
supports converged mobile voice and data
applications on a single wireless infrastructure. It is interoperable with all standards
compliant WLAN infrastructure products for
seamless wireless connectivity and
OpenStage 60 incorporates an open application platform and personalization options, and is especially well-suited for
executive-assistant environments and users
who interact with mobile devices.
OpenStage 60
optiClient 130 S Softclient
The optiClient 130 S is a PC-based multimedia client that mirrors the functionality of
optiPoint telephones. It supports a variety
of media, such as data, video, e-mail and
Internet, and offers convenient user features, including data access during calls,
application sharing and three-way videoconferencing.
Analog Adapters
Analog adapters from Mediatrix allow users
with existing analog phones, analog fax
machines and modems to connect to the
HiPath 8000 SIP environment, thereby
preserving their investments.
OpenStage 80, the high end model, incorporates premium features, materials and
components, and a productivity-enhancing
open platform for applications. It is designed with the needs of the top-level manager and executive in mind.
OpenStage 80
HiPath 8000 V3.1
OpenScape is a high-functionality
collaboration application that fits into an
enterprises’s existing voice and data infrastructure, tying together phones, voice
mail, e-mail, text messaging, directories,
calendaring, instant messaging and
conferencing services.
OpenScape’s tight integration into the
HiPath 8000 environment allows users to
take advantage of market-leading collabo-
ration and mobility features, and provides
the ability to leverage advanced user and
group presence features.
HiPath Xpressions
HiPath Xpressions combines voice, fax,
e-mail and text (Short Message - SMS)
services on a Windows 2003 platform and
transforms them into a Unified Messaging
system for use in the HiPath 8000.
Built using a modular, scalable client/server
architecture, HiPath Xpressions can be configured to meet users’ individual communication needs. New functionality in HiPath
Xpressions V5.0 supports voice and MWI
over SIP.
HiPath ComAssistant
HiPath ComAssistant is a Web-based call
control and communication filtering application that enables users to manage incoming voice and e-mail communications from
their desktop.
HiPath ComAssistant offers computer
telephony integration (CTI) features such as
“click & dial”, call logging, LDAP address
book search, and One Number Service
With a choice of two easy-to-use graphical
user interfaces (GUI), HiPath ComAssistant
provides home and business users with
rules-based communication filters and routing capabilities to optimize accessibility and
increase efficiency.
HiPath MetaManagement
The HiPath MetaManagement Suite provides a comprehensive and all-embracing
management solution for the standardized
administration of all HiPath platforms and
HiPath Accounting Management (HiPath
AM) is the accounting application for
processing and analyzing call data for
incoming and outgoing voice and VoIP calls
over different network operators (carriers)
as well as internal connections in HiPath
standalone systems and networks.
HiPath Fault Management (HiPath FM)
supports and simplifies network management by graphically displaying the complete communications network, showing
the status of each element. Special plug-ins
optimize the detection, diagnosis and
removal of failures. HiPath FM also monitors hardware and software from other
manufacturers, interfacing via SNMP (using
the manufacturer-specific enterprise MIB).
HiPath User Management provides a simplified “umbrella solution” for the creation,
deletion and modification of user data and
communication resources across all HiPath
platforms and applications in a HiPath network. All relevant user data are stored in a
Directory Service and are available for all
HiPath applications with an LDAP interface.
HiPath Quality of Service (QoS) Management provides comprehensive, easy to use
functions for configuring, monitoring and
analyzing all HiPath VoIP components in a
HiPath network with respect to the relevant
QoS parameters.
HiPath ProCenter
HiPath ProCenter is the Siemens contact
center application for the HiPath switching
platforms. It provides an intuitive agent interface with powerful visual management
tools. HiPath ProCenter also offers an
attendant console desktop that has the
same functionality as the agent desktop,
plus some attendant-specific features.
Because the desktop integrates on top of
the attendant’s SIP endpoints, attendants
can be located anywhere the IP network
extends, providing maximum flexibility in
centralized as well as decentralized
attendant environments.
Unified Communications as a Service
HiPath 8000 Server
Technical Data
Siemens' Unified Communications as a
Service (UCaaS) is much richer than mere
hosted telephony. UCaaS offers a modular
approach to building applications, allowing
enterprises to select the feature sets they
need today, with the flexibility to change
them or add to them in the future.
The HiPath 8000 software runs on highly reliable, fault-tolerant industry-standard servers, providing carrier-grade reliability. The
hardware configuration includes an IBM
System x3650 T server, or two servers for
fully redundant operation. For installations
with up to 5000 users, redundancy is optional, so the second server is not required.
The operating system is SUSE Linux Enterprise Server 9 (SLES 9); a SolidTech database is running on each server.
The flexibility inherent in UCaaS allows customers to not only grow, but to do so at
their own pace. UCaaS provides growth
choices ranging from basic telephony to
business process-embedded, presencebased rich communications environments;
from contact centers with remote agents
optimized through group- or skill-based call
routing to multimedia-based and presenceenhanced contact center solutions.
Whether your goal is interoperability with
an existing communications infrastructure
in order to optimize existing investments,
or inexpensive migration to a survivable remote office, these choices and many other
Data Center Deployment options are made
possible through Siemens’ commitment to
Open IT-based Communications.
Each server has two (2) 3.2 GHz Intel Xeon
processors, up to 16 GB of DDR2 memory,
two (2) L2/L3 Ethernet switches and eight
(8) 10/100/1000 base-T Ethernet links, set
up as pairs connected to the Ethernet
switches (two external L2/L3 Ethernet
switches are required for a redundant
HiPath 8000 V3.1 Server
The x3650 T is equipped with dual, redundant hot-swap DC or AC power supplies for
high availability, up to six PCI slots for extreme expandability, and an external alarm
panel providing 24/7 surveillance of system
outages. Hyperthreading (HT) and simultaneous multithreading (SMT) technologies
make for more efficient program processing
and increased processor performance.
With a compact 2U footprint, this rack-optimized server helps save valuable space and
resources. Built especially for network
equipment providers and service providers,
this powerful NEBS-3/ETSI-compliant server
is also the first Intel Extended Memory 64
Technology-enabled telecommunications
rack-mount server.
x3650 T Server Specifications
Width 435.3 mm (17.14 in)
Depth 508.0 mm (20.0 in)
Height 87.6 mm (3.45 in)
Form factor/height 2U rack-optimized
Processor (max) Up to two Intel Xeon 3.2
GHz/800 MHz front-side bus
Supported Standards
The HiPath 8000 platform and its standard
solution components (phones and application servers) support the relevant aspects of
the following standards specific to Voice
over IP (VoIP):
IETF Standards
Number of processors (std./max.) 2/2
Cache (max) 2 MB L2
Memory (max) 16 GB ECC DDR II 400 ECC
Expansion slots 6 maximum
Disk bays (total) 2
Maximum internal storage 293.6 GB
Ultra320 SCSI
Network interface Dual Gigabit Ethernet
Power supply (std./max.) 2/2 (DC or AC
Hot-swap components Power supply
(same cage for DC/AC power supply)
RAID support Integrated RAID-0, RAID-1
Systems management Integrated Intel
Operating systems supported Microsoft
Windows, Red Hat Linux, SUSE Linux
Note: HiPath 8000 V3.1 also supports IBM’s
xSeries x346 server.
RFC 1889 & RFC 1890: RTP - Real-Time
RFC 2234: Augmented BNF for Syntax
Specifications: ABNF
RFC 2246: The TLS Protocol
RFC 2327: Session Description Protocol
RFC 2474: Definition of the Differentiated Services Field (DS Field) in the IPv4
and IPv6 Headers
RFC 2475: An Architecture for Differentiated Services
RFC 2597: Assured Forwarding PHB
RFC 2705: Media Gateway Control
Protocol (MGCP)
RFC 2780: IANA Allocation Guidelines
For Values In the Internet Protocol and
Related Headers
RFC 2806: URLs for Telephone Calls
RFC 2833: RTP Payload for DTMF Digits,
Telephony Tones and Telephony Signals
RFC 2848: The PINT Service Protocol: Extensions to SIP and SDP for IP Access to
Telephone Call Services
RFC 2865: Remote Authentication Dial In
User Service (RADIUS)
RFC 2916: E.164 Numbers and DNS
RFC 2976: SIP INFO Method
RFC 3015: Megaco Protocol
RFC 3168: The Addition of Explicit Congestion Notification (ECN) to IP
RFC 3204: MIME Type for ISUP and QSIG
RFC 3260: New Terminology and Clarifications for Diffserv
RFC 3261: SIP: Session Initiation Protocol
RFC 3262: Reliability of Provisional
Responses in SIP
RFC 3263: Session Initiation Protocol
(SIP): Locating SIP Servers
RFC 3264: SDP Offer/Answer Model
RFC 3265: SIP-specific Event Notification
RFC 3267: Real-Time Transport Protocol
(RTP) Payload Format and File Storage
Format for the Adaptive Multi-Rate
(AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs
RFC 3272: Overview and Principles of
Internet Traffic Engineering
RFC 3288: Using the Simple Object Access Protocol (SOAP) in Blocks Extensible
Exchange Protocol (BEEP)
RFC 3311: SIP UPDATE Method
RFC 3323: SIP Privacy Mechanism
RFC 3398: ISUP to SIP Mapping
RFC 3515: SIP REFER Method
RFC 3605: Real Time Control Protocol
(RTCP) attribute in Session Description
Protocol (SDP)
RFC 3711: The Secure Real-time Transport Protocol (SRTP)
RFC 3725: SIP Third Party Call Control
RFC 3761: The E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation
Discovery System (DDDS) Application
RFC 3824: Using E.164 Numbers with SIP
RFC 3830: MIKEY: Multimedia Internet
RFC 3842: SIP Message Waiting
RFC 3852: Cryptographic Message Syntax (CMS)
RFC 3952: Real-time Transport Protocol
(RTP) Payload Format for internet Low Bit
Rate Codec (iLBC) Speech
RFC 3959: The Early Session Disposition
Type for the Session Initiation Protocol
RFC 3960: Early Media and Ringing Tone
Generation in the Session Initiation Protocol (SIP)
RFC 4028: Session Timers in SIP
RFC 4049: BinaryTime: An Alternate Format for Representing Date and Time in
RFC 4235: An INVITE-Initiated Dialog
Event Package for the Session Initiation
Protocol (SIP)
RFC 4353: Framework for Conferencing
with the Session Initiation Protocol (SIP)
RFC 4568: Session Description Protocol
(SDP) Security Descriptions for Media
RFC 4575: A Session Initiation Protocol
(SIP) Event Package for Conference State
CSTA Standards (Ecma)
ECMA-269: Services for Computer
Supported Telecommunications
Applications (CSTA) Phase III
ECMA-323: XML Protocol for CSTA
Phase III
ECMA-354: Application Session Services
ECMA TR/82: Scenarios for CSTA Phase III
Copyright © Siemens Enterprise
Communications GmbH & Co. KG 12/2007
Hofmannstr. 51, D-81359 München
Reference No.: A31002-H8031-D100-1-7629
Communication for the open minded
Siemens Enterprise Communications
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merely general descriptions or characteristics of
performance which in case of actual use do not
always apply as described or which may change as
a result of further development of the products. An
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shall only exist if expressly agreed in the terms of
contract. Subject to availability. Right of modification reserved. The trademarks used are owned by
Siemens Enterprise Communications GmbH & Co.
KG or their respective owners.