VOIP IN DEPTH

2010-05-11T02:53:00.000-07:00

An Introduction to SIP Protocol

Session Initiation Protocol (SIP) is a VoIP signaling protocol. As its name suggests, it has
everything to do with setting up sessions, which means it has the responsibility for starting a
session after you dial a number (or double-click, in some cases). As such, SIP's role also
includes maintaining user registrations with a server, defining session routing, handling
various error scenarios, and, of course, modifying and tearing down sessions.

We'll present this introduction in two parts. In the first part, we'll focus on the SIP foundation
layers. These layers allow creating a network of SIP servers. In the next article, we will go
through the way a phone communicates with the rest of the world using this server network,
based on the same foundation layers.

SIP Foundations

Mesage Structures

SIP shares the same message structure as HTTP and RTSP. As a result, most of the text
description here would fit these protocols as well. Each message is either a request or a
response. All messages are text-based and have the following form:

• First line
• Headers
• Empty line
• Optional body

The first line is different for a request and a response. A request's first line uses the following
format:

For example, a SIP request's first line can be:

REGISTER sip:avissol.com SIP/2.0

A response comes in the form of:



The version is the same in all messages. The code is a 3-digit value, and the reason phrase
could be any text describing the nature of the response. A proper first line in the response
could be:

SIP/2.0 200 OK

It's easy to scan the first characters of a message to detect whether it's a request or a
response ("/" is not a valid character for the method field, therefore even a generic parser
could differentiate a request from a response).

Next come the headers of the message. Some headers contain vital information and thus are
mandatory, but many headers are optional. Each header has a name and a value, and some
have parameters.

For more Details Visit : http://www.avissol.com

Predictive Dialer

2010-05-11T02:35:00.000-07:00

A predictive dialer is an automatic dialing system that can dial many telephone numbers at a time.
Many call centers are operated by using a predictive dialer to improve the total productivity.
Predictive Dialing is an ideal dialing pattern to be adopted or switched over for any outbound Contact Center to survive today’s
cutthroat communications market.Predictive dialing software allows the call center employee to have 50 to 57 minutes of productive
call time/hour.

Features of Predictive Dialer :

. Automatic Call Distribution
. Interactive Voice Response (IVR)
. Preview/Power/Predictive Dialing
. Agent Desktop Solution
. Multimedia Universal Queue
. Web Chat
. Voice Mail
. Voice Monitoring, Recording
. Email Management
. CATI
. Workflow
. Intelligent Routing
. Voice over IP
. Unified Reporting
. Remote Agents

Benefit Analysis :

. Comprehensive functionality on unified platform
. Flexible Architecture for investment protection – support for legacy point solutions
. Smooth transition to future technology – IP and beyond
. Open interface
. Scalability and Reliability
. Ease of use
. Speed of Implementation

BUSINESS BENEFITS :

. Trail Blazing Predictive Dialing Capability.
. 70-90% Answering Machine Detection.
. Customized Management Reports for Clients.
. Call Centre gets real time information.
. Complete Blending for Inbound and Outbound calling.
. Recording on Demand Tailor made to your client requirements.

INBOUND FEATURES :

. Automatic Call Distribution [ACD Systems] with ANIS & DNIS recognition.
. Interactive Voice Response [IVR System]
. Inbound Skill & Priority Based Routing
. Inbound DNC Management
. Call-flow Designer & DTMF recognition
. Notified Wait Time & Queue Position
. Dynamic Call Queuing
. Multiple Music on Hold
. Database Integration
. Missed Call Alert Management on IVR
. Abandoned Call Treatment & Call Back Management
. Unified Messaging & Voice Mail functionality
. Route the call based on Last Interaction

CALL EFFICIENCY :

The more prospects an agent speaks to, the more results he will see.
Predictive dialing produces, on average three times the results of manual dialing.
In addition enhances call quality (particularly important when considering customer service issues).

For more details visit :- http://contaque.com/contaque/Product/PredictiveDialer/