> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lumisreach.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Call Capacity Planning

> Understand how phone numbers and dedicated lines control your outbound call throughput. Plan your setup by budget or goal.

## How outbound capacity works

Two things control how fast you can dial:

1. **Phone numbers.** Each can make up to **75 calls per day**, the limit that protects your number reputation with carriers.
2. **Dedicated concurrent lines.** Each runs **one call at a time** (\$25 per month).

Think of phone numbers as your daily fuel. Dedicated lines are the number of lanes open on the highway.

***

## Phone number capacity

Each phone number is limited to protect your caller ID reputation:

* **75 calls per day** per number
* **20 calls per hour** per number (burst protection)

These are industry best practices enforced automatically. Numbers that exceed these limits risk being flagged as spam by carriers.

| Phone Numbers | Calls/Day | Calls/Month | Monthly Cost |
| ------------- | --------- | ----------- | ------------ |
| 1             | 75        | 2,250       | \$10         |
| 3             | 225       | 6,750       | \$30         |
| 5             | 375       | 11,250      | \$50         |
| 10            | 750       | 22,500      | \$100        |
| 25            | 1,875     | 56,250      | \$250        |
| 50            | 3,750     | 112,500     | \$500        |

<Tip>
  We recommend **numbers with local area codes** (\$5/mo). Contacts are far more likely to answer a call from a familiar area code.
</Tip>

***

## Dedicated concurrent lines

Each dedicated line gives you one guaranteed simultaneous outbound call. Without dedicated lines your calls share a managed pool with other customers, which can queue during peak times.

| Lines | Simultaneous Calls | Monthly Cost |
| ----- | ------------------ | ------------ |
| 5     | 5                  | \$125        |
| 10    | 10                 | \$250        |
| 25    | 25                 | \$625        |
| 50    | 50                 | \$1,250      |

When all lines are busy, new calls queue automatically and dispatch as lines free up. TCPA compliance and DNC filtering apply throughout.

***

## Plan by budget

Here's what different monthly budgets get you (using numbers at \$5/mo + lines at \$25/mo):

| Monthly Budget | Numbers | Lines | Calls/Day | Calls/Month | Cost    |
| -------------- | ------- | ----- | --------- | ----------- | ------- |
| \$175          | 5       | 5     | 375       | 11,250      | \$175   |
| \$350          | 10      | 10    | 750       | 22,500      | \$350   |
| \$525          | 15      | 15    | 1,125     | 33,750      | \$525   |
| \$875          | 25      | 25    | 1,875     | 56,250      | \$875   |
| \$1,750        | 50      | 50    | 3,750     | 112,500     | \$1,750 |
| \$3,500        | 100     | 100   | 7,500     | 225,000     | \$3,500 |

***

## Plan by goal

Know how many calls you need? Work backwards:

| Target Calls/Month | Numbers Needed | Lines Needed | Monthly Cost |
| ------------------ | -------------- | ------------ | ------------ |
| 2,500              | 2              | 1            | \$45         |
| 5,000              | 3              | 2            | \$80         |
| 10,000             | 5              | 3            | \$125        |
| 25,000             | 12             | 6            | \$270        |
| 50,000             | 23             | 12           | \$530        |
| 100,000            | 45             | 23           | \$1,025      |

<Note>
  These estimates assume campaigns run during the TCPA calling window (8am-9pm, 13 hours) with an average call duration of 3 minutes.
</Note>

***

## What happens at the limits

### When numbers are exhausted

If all your phone numbers hit their daily limit mid-campaign:

* Remaining contacts are set to **pending**.
* The campaign **resumes the next day** automatically.
* Pending contacts stay queued until they dial out.

### When lines are full

If all your concurrent lines are busy:

* New calls **queue automatically**
* They dispatch as soon as a line frees up
* Order is maintained

### Number health monitoring

LumisReach monitors the answer rate of each phone number over the past 7 days. If a number's answer rate drops below healthy levels (indicating possible spam flagging), it's automatically removed from rotation.

***

## Recommendations

<AccordionGroup>
  <Accordion title="Starting out with outbound">
    Start with **3 premium numbers** and **3 dedicated lines** (\$105/mo). That covers 225 calls per day, enough for most small campaigns while you build number reputation.
  </Accordion>

  <Accordion title="Running regular campaigns">
    For weekly campaigns of 500-2,000 contacts, get **10 numbers + 10 lines** (\$350/mo). You'll reach 750 contacts/day and finish most campaigns in 1-3 days.
  </Accordion>

  <Accordion title="High-volume outreach">
    For 5,000+ contacts/week, plan for **25+ numbers + 25+ lines** (\$875+/mo). This gives 1,875 calls/day capacity. Consider spreading large campaigns across multiple days for best answer rates.
  </Accordion>

  <Accordion title="Why local area codes matter">
    Studies show contacts are 2-3x more likely to answer calls from a local area code vs. a random or toll-free number. Pick an area code that matches your target market.
  </Accordion>
</AccordionGroup>

***

## The math

```
Daily capacity    = phone numbers x 75
Monthly capacity  = daily capacity x 30
Numbers needed    = ceil(target calls per day / 75)
Lines needed      = ceil(numbers / 2)  (for typical 3-min calls)
Monthly cost      = (numbers x $10) + (lines x $25)
```

***

<CardGroup cols={2}>
  <Card title="Get Phone Numbers" icon="phone-plus" href="https://app.lumisreach.com/answer">
    Add numbers to increase your daily capacity
  </Card>

  <Card title="Get Dedicated Lines" icon="git-branch" href="https://app.lumisreach.com/settings/billing">
    Add lines for guaranteed concurrent calls
  </Card>
</CardGroup>