Covering one phone seat 24 hours a day, 7 days a week takes about 4.2 full-time agents before breaks, time off, and training, and more once those are counted. That is why a $13-an-hour rate and a 24/7 line are two different budgets: $13 an hour buys one person for 40 hours a week, not one seat for 168.
Our rate card lists dedicated bilingual answering at $13 an hour, and a lot of buyers read that next to the words 24/7 and assume the full-time seat price of about $2,249 a month covers the clock. It does not. This post walks through the arithmetic so you can size a team before you ask anyone for a quote.
How many agents does one 24/7 seat need?
Divide the hours you need covered by the hours one agent works. A week has 168 hours (24 times 7). A full-time agent works 40. So 168 divided by 40 is 4.2 agents to keep one seat staffed at every hour of the week. This is plain arithmetic, not a CSC estimate, and it is the floor.
Our own quote tool uses the same rule of thumb: 24/7 coverage rotates roughly 4 agents per concurrent seat, and we size the exact roster on a discovery call. The same math works monthly: about 730 hours in a month divided by 173 billable hours per agent is again about 4.2.
Why is 4.2 only the starting number?
Because an agent who is on the payroll is not always on the phone. Paid breaks, vacation, sick days, training, team meetings, and coaching all take hours away from the seat. Call center planners call this shrinkage, and every operation has some.
The size of shrinkage varies a lot by operation, and we do not publish a single percentage because the right figure depends on your schedule and call pattern. To see how it moves the headcount, take an illustrative 15 percent: 4.2 divided by 0.85 is about 4.9 agents, close to five people for one always-on seat. Treat that as a worked example, not a promise.
One agent is 40 hours a week. One 24/7 seat is 168. The gap between them is about four people, and that gap is what a 24/7 quote is really pricing.
What does that do to the monthly price?
A full-time dedicated seat at $13 an hour is about $2,249 a month at 173 billable hours. That figure is the cost of one person working a normal full-time schedule. It is not a 24/7 price.
Multiply by the headcount and the picture changes. At 4.2 agents and $13 an hour, the hours alone come to about $9,400 a month; at the illustrative 4.9 agents it is closer to $11,000. These are arithmetic on the rate card, shown so you can see the order of magnitude, not a quote. The rate stays fully loaded, covering salary, supervision, facility, technology, and QA, but your actual roster and price are set on a discovery call.
Any monthly seat price carries the same terms: a 90-day initial term, then month-to-month, and a one-time onboarding fee billed at signing unless it is waived on your proposal.
Do you really need agents awake at 3 a.m.?
Often not at full strength. Most businesses get the bulk of their calls during the day and early evening, so a common design is a full dedicated team for the busy hours and a thinner overnight shift, or a dedicated agent who handles overnight tasks that can wait until morning.
- Pull a week of call logs and count calls by hour. If overnight is a few calls a night, you do not need a full always-on seat.
- Decide what must be answered live versus what can be a message handled at 8 a.m.
- Check weekends separately. Some businesses are quiet Saturday and Sunday; others peak.
- Use a smaller overnight team sized to the volume instead of a copy of the day team.
The point of shift design is that you pay for coverage where calls are worth answering live. Staffing the same headcount in every hour is the most expensive way to get 24/7, and rarely the best.
When is a 24/7 dedicated team the wrong choice?
At low call volume. As a rule of thumb we publish elsewhere, below about 300 calls a month a shared answering service billed by the call is almost always the better fit, and a dedicated team would sit idle. Between about 300 and 700 calls the answer depends on how complex the calls are. Past about 700 calls a month, or any volume where the caller is a sales lead, dedicated staffing starts to win. This is our judgment, not measured data.
If you only need after-hours or overflow coverage and the calls are simple message-taking, you may not need a 24/7 dedicated team at all. We would rather tell you that now than after you sign.
How to size your own 24/7 team
- Start with coverage hours: 168 per week for true 24/7, fewer if weekends or nights can be lighter.
- Divide by 40 to get full-time agents for one seat, then add a cushion for shrinkage.
- Multiply the result by $13 and 173 for a rough monthly figure at the answering rate, or use the role rate that matches your work (multichannel is $15, claims intake is $16).
- Cut the overnight shift down to what the call logs justify.
- Ask any vendor, ours included, how many people sit behind each seat and what happens when one is out.
Get a real number
Honest caveat: the figures above are arithmetic on our published rates, and the real roster depends on your hours and call pattern. To see a monthly cost for the headcount you choose, pick the answering role on our quote page, set your agents, and select 24/7 coverage; the instant estimate shows the number and the note about rotating roughly four agents per seat. You can also run your current in-house cost through the savings calculator to compare it.