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PREDICTIVE
DIALING 
Predictive
dialing offers the greatest return on investment from automated
dialing systems. The underlying technology is complex and is almost
always described only superficially by most vendors. Because of
the high levels of automated dialing, what really takes place is
not easy to determine. This may be the reason that while every dialer
vendor claims to have the best predictive dialer, independent and
objective evaluations are not available.
With predictive
dialing, we are able to achieve very high rates of operator
productivity by reducing the time between each collection call.
The dialer has traditionally been able to do this by setting up
a group of collectors in a "pool" and then placing more
calls than there are agents, knowing that there will be a percentage
of calls such as the busy's and no answers that do not have to be
transferred to an agent.
These unconnected calls are documented in the system, and management
is able to act on the results just as they would had the agent placed
the call themselves. But because the entire process is automated,
there is no effort expending in dialing the phone and no time is
wasted on managing or documenting the unconnected calls. With the
appropriate "pacing" technology, the dialer is able to
predict the availability of agents and deliver connected calls with
as little idle time as possible between each call.
The following
benefits are realized with well-managed predictive dialing operations
:
- As a result
of significantly greater talk-times and less idle time, you will
enjoy lower costs compared to calls made in any other dialing
environment.
- The number
of live contacts far exceeds the numbers in other dialing environments.
- Every user's
time is better managed as dialing errors are virtually eliminated.
- Even answering
machines and operator intercepts can be identified, with management-defined
action being taken to make the agent as productive as possible.
- Calling rules
are handled by the system, thereby reducing your costs and preventing
errors. This refers to long-distance coding requirements as well
as time-zone management, to ensure that accounts are called at
the right time in the day.
There are some
disadvantages of using a predictive dialer in a collection environment.
These are the following :
- It is difficult
to give up the collection model that involves the ownership of
accounts (usually in a collection agency setting). Typically,
you need a "pooled" environment to effectively use a
predictive dialing solution. With I-Tel, you can obtain the benefits
of predictive dialing with as few as 4 agents in a campaign. With
fewer agents, idle time will be high compared to having a larger
number of agents. With predictive dialing in a "pooled"
environment you must be prepared to sacrifice the ownership concept
in return for potentially enormous gains in productivity.
- In an "ownership"
or "cradle-to-grave" environment, giving credit to a
collector for payments generated is a very simple task. In a predictive
environment, where the accounts are pooled and several collectors
may work the account at different times, measuring individual
productivity is very complex. Most dialers will produce reporting
that will indicate the number of calls connected, the results
of those calls etc. But who is really collecting the money? Intelec
has features that will allow you to measure individual productivity
based on payments generated in a pooled dialer environment, thereby
overcoming the major disadvantage of predictive dialing in the
collection industry.
When predictive
dialing is applicable, you usually work with different campaigns
that are set up to target specific groups or types of accounts.
With I-Tel, it is also possible to set up "agentless"
campaigns which may be started outside normal office hours or for
special types of accounts. Messages can be played when calls are
answered or answering machines are detected.
ABANDONED CALLS
Any
time you dial more than one call per agent, there is always the
chance that you will get more than just one live call per
available agent. Since an agent can only handle one live call at
a time, it means that any other live call(s) cannot be dealt with
immediately by an agent. Different dialers use various strategies
to minimize and draw attention away from such calls. Recent legislation
has highlighted the area of abandoned or nuisance calls, and more
people are aware of the issues. However, for the average user, there
are still more questions than answers. A well-designed dialer will
launch calls such that the expected number of answered calls equates
to the number of agents available, given that some numbers can be
expected to be busies, no answers etc. But statistically, any time
you dial out on more trunks than there are agents, you run the risk
of nuisance calls. If you increase the dialing rate, then the incidence
of such calls is certain to go up.
Each dialer company will promote its own proprietary method of balancing
the abandoned call rate and idle time for an agent. It is very important
to understand that the abandoned call rate is the ratio of abandoned
calls to calls answered and not calls attempted.
It is measured by dialer campaign. In general, the more
calls you are willing to "abandon" the more "talk
time" you can have for your agents.
What is the
definition of an "abandoned call"?
An abandoned call is :
- a call that
the dialer disconnects when a person answers, because no agent
is available, or
- a call that
is connected but the person receiving the call hears nothing because
no agent is available for some defined period of time. Based on
present legislation in the US (primarily targeted at telemarketing
companies), that is about 2 seconds after the phone is answered.
If an agent does not get to the call within that period, the call
is deemed to be abandoned. You must play a short message
and abandon the call (hang up). It may be permissible to hang
up without playing a message but is it very important to understand
that after the 2 seconds, the call must be counted as an abandoned
call, regardless of how it is handled.
- In addition
to the above, there is a class of "nuisance call" that
has historically been made in the collection industry - This is
a call that is canceled without waiting for the phone to ring
a sufficient number of times (i.e. a minimum ring time of 15 seconds).
This type of call is now banned in the US under both DMA rules
as well as federal legislation, and we feel that it is likely
to be disallowed in the collection industry too.
While all dialing
products have a predictive dialing module, the most compelling differences
between those systems and I-Tel may be the manner in which abandoned
calls are managed. Our dialer engine was designed to meet the most
stringent codes of dialing practices. It was designed specifically
for a compliant world. With reference to this we have:
- A maximum
abandoned rate of 5%
- There are
no predictive hang-ups, i.e. there will always be
a minimum ring time of 15 seconds
- The abandoned
call delay maximum is 2 seconds
To help you understand how the area of predictive dialer legislation
has developed, the following provides additional reading.
- As far back
as in 2002, the state of California was holding hearings on predictive
dialer errors and setting up guidelines for responsible dialing.
That resulted in Rule 02-02-020 as governed by the California
Public Utilities Commission (CPUC). Changes were made to the Interim
Opinion, but the early hearings give us good insight into
what could happen when there is more consumer pressure to legislate
the use of dialers. The rulings state that the maximum abandoned
call rate allowed for predictive dialing telephone equipment (this
was later changed to target telemarketing companies) will be 3%
of answered (live) calls per campaign per month. The maximum call
delay (the amount of time you have to get an agent on the call),
before the call is deemed abandoned, should be within 2 seconds
of the completed greeting, i.e. 'Hello...' Yes, there will
be a penalty for non-compliance.
- Our dialer
has always been able to meet the strict California compliance
guidelines - some brief information can be obtained here.
- To review
the area of "abandoned calls" in greater detail, please
review the case study on "The
elimination of silent calls caused by Predictive Dialers".
PREDICTIVE DIALERS AND "PACING"
METHODS
The productivity of a predictive dialer can be measured by the "predictive
benefit" of the extra agent talk time it provides compared with
simpler dialing methods such as progressive dialing. The quality
of a predictive dialer lies in its ability not just to generate
productivity but to do so whilst working under compliant dialing
conditions. In a given period of time (and for a specific campaign),
more contacts will be made when more accounts are dialed and the
wait time between connected calls is kept to a minimum. Abandoned
calls and wait times are simultaneously and successfully
managed based on how a dialer "paces" itself. In the traditional
model a dialer will dial more calls than there are agents, using
different methods to determine exactly how many calls should be
launched at any given time. If a dialer over-dials, you will be
forced to abandon calls because there will be agents available to
take the calls. If the system dials too slowly, wait times are increased
and you will be making fewer contacts. Pacing is the heart and soul
of dialer technology. The design and algorithms are technically
very complex and the results will usually separate the effective
dialer from all other dialers.
Most dialers have been caught short by the new Federal requirements
on dialing. Whist in most cases it has been, as expected, relatively
easy for them to achieve compliance with the new standards, achieving
effective performance under compliance is something quite different,
and a challenge that is proving too great for most dialer vendors.
Most dialer designs originated in a market where there no rules
and consumers were more tolerant of abandoned and other kinds of
silent calls. For example, it was/is not unusual for a dialer to
have a guess at the optimum dialing rate using some mathematical
formula, and then go back and forth, under and overcorrecting as
it seeks to find the right balance. Such "seeking" methods waste
abandoned calls in a world where abandoned calls are suddenly becoming
a scarce as opposed to a "free" resource. Federal agencies are clamping
down on abandoned calls and collection agencies may eventually come
within this net. So,
can dialers cope under compliance? Read this interesting document
that reviews the background of compliance and presents several little-known
facts about this subject.
How does our
dialer manage its pacing? We create a "dialing pool" - You could
think of this as the area that we use to launch our predictive calls.
When agents become free (not before), we put more numbers
into the dialing pool. The more agents there are, the more the numbers
we add as each agent joins. This is in recognition of the fact that
as agent numbers go up, there is a stronger likelihood that another
agent or other agents will become free to take any overflow calls.
Within the system and taking account of all campaign
events such as call outcomes and talk/wrap distributions, a very
sophisticated simulator uses immense power to calculate the probability
of an agent becoming available in the next second, 2 seconds, 3
seconds and so on. We dial not just for an agent, but for the way
in which all agents are expected to become available. For a given
abandoned call target, our dialer ensures that you get the best
possible talk time per agent hour, or if you like, the lowest agent
wait time achievable between calls.
Our design approach is very different from traditional dialer
designs. The results are similarly different.
The following is an example of a "Campaign status inquiry"
for predictive dialing. Answering machine detection was turned on.
Note the small number of abandoned calls compared to the number
of live calls (less than 5%).

The following is the agent status display for a predictive campaign.
The color coding indicates the mode that the specific agent is in
(Talk, Wait or Wrap). For the campaign, talk time per hour is about
43 minutes. Average wait time is 11 seconds and as the previous
chart showed, the abandoned call rate is less than 5% (33 abandoned
compared to 722 completed calls).
In the above,
the yellow marker shows the average length of an event. E.g. an
agent spending an average of 11 seconds in wait mode.
The blue markers show the amount of time spent in a particular state
per hour :
- Logged
- The amount of time spent logged onto the dialer during a shift.
- Completed
live calls - The number of calls that the agent has been engaged
in with a live contact during the shift.
- Talk
- The time the agent spends talking to a live contact.
- Wait
- The time spent once both talk and wrap have been completed,
before the agent receives another call.
- Wrap
- Time spent updating screen details once the talk phase has finished
and prior to going into wait again.
- Preview
- Any time spent previewing screen information before asking the
dialer to place a call.
- Not ready
- Time when the agent is logged into a campaign but unavailable
for calling purposes as they are on a break.
- Answer
machine/Fax - Any time spent by the agent detecting and terminating
any such calls that might be put through to them, if machine detection
has not been enabled. This may require some coding on the dialer
side and may not be applicable in Intelec.
Sytel
has been supplying world-class predictive dialing software to the
global call center market since 1997. Sytel's predictive dialing
software was developed in response to the need to be able to dial
effectively at an abandoned call rate of 1%, or lower. For many
years, this need was ignored in the United States, but is has now
become a pressing requirement. Compared to traditional dialers,
I-Tel adopts a significantly different approach with the
Sytel Softdial
Plugin® that uses the Virtual Event Machine (VEM)®, a
highly sophisticated simulator.
This is a software engine running in excess of 10 million simulated
calls a second with blazing speed, constantly adjusting its dialing
pace with precision, to match the rapid changes in campaign conditions.
What is the advantage of this approach? With
traditional dialing solutions, collection supervisors spend a great
deal of time monitoring the dialer and tweaking dialing rates when
abandoned calls increase. A well-designed dialer should allow supervisors
to focus on managing their agents and planning campaign strategies
as opposed to second-guessing their dialer. This common problem
does not exist with the I-Tel dialer where you simply define
the maximum abandoned call rate and leave it alone!
For the collection industry we have a set the maximum abandoned
call rate at 5% which is higher than the FTC rate but conforms with
the DMA's rules. I-Tel easily copes with all extreme dialing conditions
e.g. 80-90% no answers and/or answering machines. Its performance
can not be beaten and we welcome any benchmarking test that users
or other market participants may wish to run. Simply
stated, we give you very high call volumes and low wait times
while meeting your objectives on abandoned calls.
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