Reducing server dependencies in SIP networks Medhavi Bhatia

Typical SIP Servers functions Location and Routing NAT Traversal Conferencing Auto-attendant IVR Recording Calls Usage and Billing Presence

Location and Routing

NAT Traversal

Conferencing

Auto-attendant

IVR

Recording Calls

Usage and Billing

Presence

How to reduce dependency on servers Location and Routing NAT Traversal Conferencing Auto-attendant IVR Recording Calls Tracking Usage and Billing Presence Replace central servers with distributed Bootstrapping / P2P technology Replace SBCs with STUN servers Lightweight conferencing can be done on PCs When users/nodes are available in the network, distribute these on their PCs. When no one is available, these reduces to just Voicemail! Each call terminating on on a user PC may be recorded on the PC itself. Authenticate users, software and devices connecting to the network and track usage and billing on PCs itself. This avoids expensive billing and accounting software Presence can be polled end to end by PCs

Location and Routing

NAT Traversal

Conferencing

Auto-attendant

IVR

Recording Calls

Tracking Usage and Billing

Presence

Why go through the trouble? SIP Server hardware can be expensive Others are relatively cheap, but come with a lot of baggage Real-time management and operations headaches May have unnecessary bandwidth costs Scalability and network upgrades are always painful and expensive A Single server uses 20 times power of a single PC while 5 PCs can easily perform all the server functions they need within themselves.

SIP Server hardware can be expensive

Others are relatively cheap, but come with a lot of baggage

Real-time management and operations headaches

May have unnecessary bandwidth costs

Scalability and network upgrades are always painful and expensive

A Single server uses 20 times power of a single PC while 5 PCs can easily perform all the server functions they need within themselves.

Some facts about PCs The CPU sits idle most of the time during word processing and internet browsing because CPU processing speeds are much faster than keyboard input or internet communication 80-90% of most PCs processing power is untapped Lots of Grid Computing alternatives exist now!

The CPU sits idle most of the time during word processing and internet browsing because CPU processing speeds are much faster than keyboard input or internet communication

80-90% of most PCs processing power is untapped

Lots of Grid Computing alternatives exist now!

PCs and high volume voice processing Typical off the shelf PC continues to become powerful in terms of CPU capabilities, memory and hard disk What is already proven (Skype/Yahoo etc) 4-5 people conferences 4-5 simultaneous calls Real-time analysis of media PCs always are ahead in terms of latest audio technology. Example: most popular codecs G.729, iLBC, G.711 no special DSPs required Popular broadband technologies provide enough bandwidth Huge Hard disk to store local recordings or playback messages Multiple Cores allow easy multi-tasking

Typical off the shelf PC continues to become powerful in terms of CPU capabilities, memory and hard disk

What is already proven (Skype/Yahoo etc)

4-5 people conferences

4-5 simultaneous calls

Real-time analysis of media

PCs always are ahead in terms of latest audio technology. Example: most popular codecs G.729, iLBC, G.711

no special DSPs required

Popular broadband technologies provide enough bandwidth

Huge Hard disk to store local recordings or playback messages

Multiple Cores allow easy multi-tasking

Contact Center Environment High volume call processing environment Each Agent has a PC with light word processing and database access going on Most IVR call routing functions kick in when there is at least one agent available to handle calls. In all other cases IVR provides a database access and voicemail utility for the calling customer.

High volume call processing environment

Each Agent has a PC with light word processing and database access going on

Most IVR call routing functions kick in when there is at least one agent available to handle calls. In all other cases IVR provides a database access and voicemail utility for the calling customer.

The WebAstra Contact Center Solution Contact Center Solution from 3CLogic which runs on PCs Software as a Service (SaaS) model. Buy on Demand, Activate in Real-Time, Deploy anywhere in the World and Manage from your home Multi-tenant hosting, highly scalable and robust

Contact Center Solution from 3CLogic which runs on PCs

Software as a Service (SaaS) model. Buy on Demand, Activate in Real-Time, Deploy anywhere in the World and Manage from your home

Multi-tenant hosting, highly scalable and robust

For More Information Checkout WebAstra Contact Center solution at www.webastra.net or www.3clogic.com My Blogs http://techpiper.blogspot.com http://turngeek.blogspot.com

Checkout WebAstra Contact Center solution at www.webastra.net or www.3clogic.com

My Blogs

http://techpiper.blogspot.com

http://turngeek.blogspot.com