Telecom Expense Management Blog

There are several ways a wireless expense manager can allocate the cost of the pool plan to different cost centers.

Average per line.  With this method, you simply add the total monthly recurring and peak charges and average per each line in the pool plan. 

1. 100% Cost per Minute.  With this method you take the total monthly recurring and peak charges and divide by the peak (non-mobile-to-mobile) minutes to derive a cost per minute.  Then you allocate the pool costs by charging each user the cost per minute times their peak usage.  Users with zero peak usage in that month should be charged nothing for the voice component.  Of course, if they only made text or data charges, those costs would be directly allocated to the individual and not averaged in the pool.
2. Base Plus Cost per Minute.  This method is a hybrid of methods 1. and 2. Here you would allocate a base charge (say $39) to all users in the pool.  This is the cost to have the potential benefits of a cell phone, regardless of how much you use it.  Any excess costs (pool monthly and peak charges) above the base charge times the number of users is converted to a cost per minute.  Thus, each user is allocated a base plus the cost per minute times their peak minute usage.
3. Everyone Gets Unlimited.  While this may not be the most cost effective option, it does simplify order, administration, and monitoring. If your company is large enough, you might be able to negotiate the unlimited plans down to $89/line.

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You would think that it would be easy to get approval from senior management to migrate to a pool plan to reduce wireless expenses.  This is not always the case. Migration can become a complex and contentious issue when there are multiple cost centers.  Cost center managers that have low usage individual lines do not want to subsidize the high usage cost centers that share the pool.  For example, cost center 1 has 10 users on the lowest individual plan of 450 minutes (at $39/line) and cost center 2 and 10 users on the highest individual plans of 2,000 minutes (at $89/line).  So the total pool size needed is 24,500 minutes for an average of 1,225 per user.  The closest plan that the carrier has is 1,500 minutes so you put all 20 users on the 1500 minute plan (at $59 per line).  Cost center 1’s cost has gone up $190 in the pool even though the company reduces wireless expenses and saves $100 ($1,280-$1,180).

In my next post on wireless expense management, I will explore different ways you can allocate a pool plan.

As a manager with responsibility for Wireless Expense Management you may be challenged with converting individual plans to pool plans. If you do some analysis, you can see that it is possible to reduce mobile phone expenses by a significant amount by simply placing all of the lines into an optimal pool plan. 

There is another benefit of the pool plans.  The number of minutes an employee uses in a given month can vary by as much as 100%, especially if the individual occasionally travels.  However, with all the users on a pool plan, the total usage usually doesn’t vary by more than 10%.  Obviously, the larger the pool, the less the monthly variance will be.  Therefore it is much easier to monitor and manage a pool plan rather than individual plans. If you manage your pool using a manual process or a spreadsheet, we think the optimal pool size is one that gives you about a 20% buffer over your average monthly usage. If you use a Wireless Expense Management solution, you can save money by reducing the number of minutes in your pool to give yourself a 10% buffer

Once you decide on the cost allocation methodology, the next step is to determine the monthly process to monthly monitor the pool plans and implement the cost allocation methodology.  I’ll discuss some ideas regarding this in my next post on Wireless Expense Management.