SIP Application Server

SIP Application Server
Creating the best Shaping future communications
SIP Application Server
Evolution in communication network technologies, the proliferation of affordable smart
phones/tablets, and the popularity of Over-The-Top (OTT) communication services have driven
fundamental changes in consumers’ data and content consumption behavior virtually everywhere.
Rich media communication services, once niche or novelty, have fast become must-haves across
businesses and general consumers alike.
In response to changing market dynamics and to counter the encroachment by OTTs onto their core revenue sources,
telcos are resorting to the deployment of IP Multimedia Subsystem (IMS) as an essential infrastructure on their 4G LTE
network to facilitate the creation of novel multimedia services, as well as to support interoperability and network
convergence. IMS allows network operators to maintain market leadership and to continue to play a central role in the
deployment of new revenue-generating multimedia services over a VoLTE, all-IP infrastructure, thereby alleviating the
dangers of telcos becoming mere “bit pipes” to OTTs.
WIRELESS
RICH MEDIA
SERVICES
LT E
DATA
HANDSET
Solution
Overview
VIDEO
10
M
1 M pbs
0.1 pbs
Mp
bs
H S PA
E
EDG
PM P
HVG
A
QVG
A
QCIF
64
H.2
SVC
2
EG
MP
NETWORK
The IMS-based WiseSpot Session Initiation Protocol (SIP) Application Server is a SIP
(RFC 3261 Standard) compliant Registrar and Proxy Server Module that aims to help
operators create advanced multimedia telephony services on various IP based
networks, such as a LTE/IMS core network via IMS Service Control (ISC) interface and a
next-generation network via standard SIP interface or customized SIP interface.
It is capable of accommodating multiple applications on the same platform, thereby allowing rapid
deployment over an IMS core of both traditional and next-generation revenue services including:
HD Ringback Tone
Mobile Centrex
Video Ringback Tone
Group Call Services
“Block The Blocker”/ Call Filtering
Moblie Call Recording
Voice Mail / Visual Voice Mail
SIP Interactive Voice Response System (IVRS)
E: enquiry@wisespotgroup.com
W: www.wisespotgroup.com
Solution
Architecture
WISESPOT SIP APPLICATION SERVER
MEDIA
SS7 / TDM
SI P / DIAMETER
HSS
MSC
SIP-IVR
Mobile Call Recording
Group Call
Voice Mail /
Visual Voice Mail (VVMS)
RingBack Tone
SERVICES
Mobile Centrex (MC)
SE RVICE MANAGEMENT
MANAGEMENT
S - C SCF
S of t s w i tc h
Circuit-Switch Core Network
IMS Network
KEY ADVANTAGES
Field-proven & Ready-to-deploy
Saves cost if replacing legacy Time-Division Multiplexing (TDM) & SS7 equipment
• No need for further investment in costly TI/EI voice trunks, TDM card TI/EI and SS7 interfaces
• Supports multiple services on one single platform. Saves operating expenditure (OPEX) of existing services and capital
expenditure (CAPEX) of new services
Flexible & scalable: additional capacity through additional SIP software licenses instead of requiring the purchase of
TI/EI ports and interface cards
Supports all modern audio codec for HD voice quality. Also supports media streams over Network Address Translation
(NAT) Traversal
Proven interoperability with 3rd party IMS systems, including Huawei, ZTE, Nokia (NSN, Alcatel-Lucent) and Ericsson
Customizable to meet unique service & business operational needs. E.g. Accounting/CDR, Provisioning API, Prepaid API
and more
Supports multiple domain hosting
E: enquiry@wisespotgroup.com
W: www.wisespotgroup.com
MAJOR FUNCTIONS & FEATURES
PROTOCOL & STANDARDS
• Supports industry-standard SIP, IMS SIP and customized SIP protocol, and can co-exist with legacy circuit switch
telephony protocols such as SS7 and SIGTRAN
• Supports NAT Traversal
• Supports IPv6
• Supports Transmission Control Protocol (TCP) transport
LOAD BALANCING
• Loading balancing and failure detection to trigger routing to alternative servers
• SIP Back-To-Back User Agents (B2BUA) that interoperates with the telco network to manage SIP Message Routing and
Network-SIP Application Server (AS) Interworking
CALL & IP MEDIA CONTROL
• Routing of SIP requests from a SIP User Agent (UA) or other server to the most appropriate SIP-Uniform Resource
Identifier (URI) address based on its registrar database and dial plan
• Supports various SIP call flows, SIP header manipulations and customized SIP headers
• Supports setting of customizable call flows to increase compatibility between SIP-compliant products and to provide
additional options for complex call routing
• Performs IP media control based on the SIP control signal, media resource management, Dual Tone Multi Frequency
(DTMF) handling, QoS alarms and LAN failure detection
SIP REGISTRATION (OPTIONAL)
• Registrar Service for SIP UA to register “bindings”, which are associations between the media endpoint alias and its real
(transport) address
SIP DIGEST AUTHENTICATION (OPTIONAL)
• Allows a remote endpoint (a User Agent Server, or UAS) to verify the identity of a User Agent Client (UAC) that has sent
a request to the UAS. “Digest authentication” refers to the encryption method used for secure transmission of the user’s
secret password in the message
SECURITY FEATURES
• Allows definition of filter policy and block policy against malicious activities
SESSION MANAGEMENT
• Allows real time session management functionality, such as viewing and terminating active calls
MONITORING & DIAGNOSTICS
• Provides real time IP call monitoring tools, SIP trace logs for troubleshooting and temporary porting of mirror SIP traffic
to dedicated services for advanced troubleshooting
E: enquiry@wisespotgroup.com
W: www.wisespotgroup.com
Deployment Scenario : Planning & Considerations
for Video RingBack Tone
Video RBT Planning in LTE
1 LTE BRINGS FAST, EFFICIENT & INTELLIGENT VIDEO SERVICE
Compared to circuit-switched technology used in 3G networks, IP-based packet communication on
4G/LTE networks is more susceptible to delay and echo
HD audio and video codec processing
High Quality RBT
Normal RBT
8k8bit wav 64kbps
Song and musical instruments sound
not that clear;
The quality will be worse in 2G/3G
network after compressed to 12kbps
Codec: AMR-WB
Bit rate: 192kbps or above;
Superior HD sound quality;
Adaptive bit rate according to specific
network situation
2 ROBUST PLATFORM
Network connection: Provides services across various standards and networks
Content adaptive: Flexible play formats and conversion
LISTENING
Traditional
voice user B
CS call /
CS fallback
LISTENING
HD
VRBT
User A
LTE voice user B
VoLTE call
Set RBT in
endpoint
WATCHING
LTE video
user B
Video Call
Video RBT Data Flow Sample
LTE
TAS
2G/3G
LTE
Calling
1
GMSC
Video Call
PSTN / GSM
CSCF
Called
2
VMSC
3
4
Voice Ring Call
Video RBT
Audio + Video
Audio
Video call stream
Call set up
E: enquiry@wisespotgroup.com
W: www.wisespotgroup.com
Video RBT Planning and
Consideration for Platform Integration
Centralized platform: Easy for operator to manage different settings for different services
Automatic adaptation for different kinds of calling scenarios
Flexible to allow for choosing from a selection of different media resource files to play
Allows introduction of new services with a speedy time to market, thus keeping customers satisfied
Control call/video delay and provide better access speed
Efficient Content Management to manage system resource usage
Effective coordination among existing core network or deployed RBT systems. For example, if VRBT system
can be used in 2G/3G/4G networks; if VRBT system can be utilized with existing deployed 2G/3G RBT system
DATA (Kbps)
GSM/TD/WCDMA
CDMA 2000 1x
2G/3G
VOICE
CS CORE
NETWORK
DATA (Mbps)
Client (2G/3G/LTE)
INTERNET
MSC/HLR
TD-LTE / FDD-LTE
CSFB/SRVCC
CS fall back
LTE
VoLTE
IMS CORE
NETWORK
VRBT
CSCF/HSS
Data
2G/3G voice
LTE voice
Why WiseSpot?
Headquartered in Hong Kong since 2001, WiseSpot Company Limited has become a leading developer of telecom solutions and system integrator
with over 100 live installations covered by our 7x24 on-site support, spanning Greater China, Singapore, Australia, UK and USA. In addition to our
dedicated product development center in Shenzhen and a full-service regional office in Taipei, we are a team that is well versed in the latest fixed,
mobile and IP data technologies. Backed by an international network of best-in-class technology partners, we have a proven track record of
successful implementation into live production networks with minimal risk of service interruption. Our experience ensures that the final solution
ultimately installed is of uncompromising quality and meets the project's business, technical and budgetary objectives. E: enquiry@wisespotgroup.com
W: www.wisespotgroup.com
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