Huw Rees 8x8, Inc. [email protected] Hosted iPBX / IP Centrex.
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Transcript of Huw Rees 8x8, Inc. [email protected] Hosted iPBX / IP Centrex.
New Telecommunications Landscape
Rapid adoption of broadband connections and IP technology are being made
• Broadband and IP can be used to provide IP Centrex / Hosted PBX services
• PBX becomes a piece of software embedded in the Network
New Service Provider Models
• Enables new service provider models. Adding voice to data and data to voice.
• No PBX hardware investment for the enterprise – voice control (hardware and software) resides at Service Provider’s premise
– Cost savings
– No hassles for small companies
– Single bill for phone and Internet
Hosted iPBX vs IP Centrex
• Is there a difference?– Maybe, but somewhat semantics– IP Centrex is a common set of services usually
without much in the way of customization– Hosted iPBX offers a “virtual PBX” with
customized services unique to each end enterprise customer.
Targeted Enterprise CustomersPotentially, virtually any type of enterprise
SMEs (10 -200 extensions)
Larger enterprises with multiple sites
Multi-tenant buildings
Branch Offices
High value proposition for distributed enterprise customers
Vertical Markets – Hotels, Healthcare, Professional Services, etc.
Typical SolutionTypical Solution
Unified Corporate NetworkHosted iPBX or IP Centrex also creates ability for larger
enterprises to consolidate multiple separate office data and telephone networks into a single unified corporate network
Market Requirements
• Carrier grade reliability/availability
• Provides features that significantly surpass current Centrex
• Integrated applications environment that allows for the development of user defined custom features (is this really true)?
• QOS
Reliability/Availability• Operating environment
– Most Service providers seem to prefer Solaris or (moving to) Linux. Windows is generally not accepted (always exceptions)
– Scalability - must scale to thousands of companies
– Reliability - everybody wants five “9s”, but do they really need this?
Typical Feature Set Voice Mail Auto Attendant 3-way Conferencing and conference bridge (n-way
conferencing) Call Forwarding (Find Me, Follow Me) Do Not Disturb Call Waiting Caller ID Call Waiting Caller ID Call Transfer (1 step, 2 step: announcement), Call Hold Hunt Groups, ring groups Fax Support Plus new CTI features such as remote receptionist and (web
based) user control, including Microsoft Outlook integration
Voice Mail Auto Attendant 3-way Conferencing and conference bridge (n-way
conferencing) Call Forwarding (Find Me, Follow Me) Do Not Disturb Call Waiting Caller ID Call Waiting Caller ID Call Transfer (1 step, 2 step: announcement), Call Hold Hunt Groups, ring groups Fax Support Plus new CTI features such as remote receptionist and (web
based) user control, including Microsoft Outlook integration
QOS• If there is a point to point IP connection,
QOS can be implemented
• If the service is entirely over the Internet, QOS is really a “best effort” – Use compressed codecs (poor man’s QOS)– Compensate at the end point with packet loss
concealment and adaptive jitter buffers– Compensate with a better business value?
Benefits over traditional PBXFor Service Providers
Additional and recurring revenues with new service offering
Retain customers as company grows
Minimal capital investments
Improved margins
For Service Providers
Additional and recurring revenues with new service offering
Retain customers as company grows
Minimal capital investments
Improved margins
For End Users
Single broadband connection for voice and data eliminates costs of PSTN link
Low capital investmentService scales with the
companyHighly customizableMoves, adds & changes
quick, easy and inexpensive
For End Users
Single broadband connection for voice and data eliminates costs of PSTN link
Low capital investmentService scales with the
companyHighly customizableMoves, adds & changes
quick, easy and inexpensive
CPE
Customer Premises Equipment (CPE) Support:
Many excellent IP phones now availableMedia Gateways (useful for fax)Soft Clients
Customer Premises Equipment (CPE) Support:
Many excellent IP phones now availableMedia Gateways (useful for fax)Soft Clients
Protocols
• SIP is king, but for a virtual PBX maybe a master slave protocol is more suitable (MGCP, SCCP)
• Does the end user care - no.
• Does the service provider care - maybe
• Answer - support multiple protocols?
PSTN gateway
SIP and MGCP
SIP
pro
xy
Med
ia S
witc
h
Web
Serv
ices
AP
I (XM
L) Support
Billing
Store front
Cu
sto
mer A
dm
in
LD
AP
Data
base
System Management
SoftSwitch(LINUX servers, JVM 1.4) Front end
(Windows 2000, SQL)
Service Architecture Overview
Endpoints
Hosted iPBXIP CentrexFeature Server
Feature Server ArchitectureExternal Applications
(billing, email, …) CTI Applications WebBrowser
OAM&PApplications
Tcl Service Customization
XML,LDAP,SNMP
TNM
LDAP
ApplicationsServers
(VM,UM,…)
VM AA IVR
SLEE
RTPMS API
Media Server
SCCP (Skinny)
Gateway/Softswitch
MGCP SIPH.323
Core iPBX ConfigurationManager
JTAPI for OA&MJTAPI
Phonelets Servlets
IP Phones, SIP Phones & Media HubsH.323, GW,
GKs
iPBX Server Software
Device Manager
Administration• Any solution needs to include at least 3
tiered administration functions– Service provider interface (allows complete
control over all virtual iPBXs or Centrex groups)– Business owner interface - allows control of a
virtual group- can set global preferences of users and dynamic MAC
– End User interface - allows self provisioning and local preferences
Enhanced Services
• IP Centrex / Hosted iPBX can offer new services like TV quality video calls– Broadband videophones with 30fps, full motion
video– Need 256Kbps+ to look “good”– Has to be plug and play– Too expensive today?
Keys to success
– How to deploy in volume – Needs to meet previous market requirements
plus • plug and play installation. • Dial tone in seconds. • Firewall/NAT traversal.
– Need distribution channel– Also, don’t forget 911