How many outbound calls can MyOperator place at once, which dial method should I use, and how do I raise the limit?
⚡ Quick Answer — MyOperator uses channel lines to place outbound calls. Most outbound methods (Two-Way, Peer-to-Peer, IVR-based) consume two lines per call (agent leg + customer leg).
Outbound concurrency depends on:
- Your total channel lines
- The outbound allocation rule
- If ≤ 4 lines → 50% outgoing / 50% incoming
- If > 4 lines → 80% outgoing / 20% incoming
- Dialing method
- One-Way → uses 1 line per call
- Two-Way / Campaigns → uses 2 lines per call
1. Outgoing Dial Methods: One-Way vs Two-Way
1.1 Method definitions
Method | How the call starts | Call legs generated | Key note |
|---|---|---|---|
One-Way | User dials from mobile/dialer app / CRM integration | 1 call (to customer) | System never calls the user |
Two-Way | Follows the current Dial first setting | 2 calls (user ↔ customer) | System bridges both legs |
1.2 Cost comparison
One-Way is generally cheaper because:
- Only the outbound leg is billed.
- No incoming-call charges apply.
- Broadcasts or pre-recorded messages can reach many customers at once.
Two-Way often costs more because both legs are billable, and conversations typically last longer.
1.3 Using One-Way on toll-free numbers
- Supported since Apr 2022.
- Admin must purchase a fixed DID; shared DID is not supported for One-Way on toll-free accounts.
- Shared DID would force agents to dial your own toll-free number, inflating your bill.
1.4 Change the "Dial first" party (Two-Way only)
MyOperator panel → Call → Outgoing → Click to Call → Edit call settings → Dial first (On two-way) → Save
2. Understanding How MyOperator Allocates Channel Lines
MyOperator protects your incoming call capacity by reserving part of your lines:
Total Channel Lines | Outbound Allocation | Example |
|---|---|---|
1–4 lines | 50% outbound | 4 lines → 2 lines outbound |
> 4 lines | 80% outbound | 10 lines → 8 lines outbound |
3. Exact Formula to Calculate Maximum Outbound Calls
A. For Two-Way / Peer-to-Peer / IVR-based Calling
These consume 2 lines per outbound call.
Max concurrent outbound calls = (Outbound allocated lines ÷ 2)
B. For One-Way Outgoing
Consumes 1 line per call, so:
Max concurrent outbound calls = Outbound allocated lines
4. Examples
Example 1 — You have 12 channel lines
- Outbound allocation: 80% = 9.6 → 9 lines usable
- Using Two-Way:
- 9 ÷ 2 = 4 parallel outbound calls
- Using One-Way:
- 9 parallel outbound calls
Example 2 — You have 3 channel lines
- Outbound allocation: 50% = 1.5 → 1 line usable
- Using Two-Way:
- 1 ÷ 2 = 0 (practically 1 call at a time using all 3 lines if using One-Way)
- Using One-Way:
- 1 outbound call
- Or up to 3 if all lines are manually shifted to outgoing
Example 3 — You want a campaign to run at scale
Peer-to-Peer / IVR Campaign → always two-leg calls
If you have 20 lines:
- Outbound allocation (80%) → 16 lines
- Maximum → 16 ÷ 2 = 8 parallel outbound campaign calls
5. Important Operational Notes
When Can You Use All Channel Lines for Outbound?
Only when using One-Way outgoing calling.
In this method:
- No agent leg → only customer leg is dialed
- System uses only one line per queue entry
- You can utilise 100% of your channels
6. When Channel Limits Apply Automatically
The following always uses MyOperator’s outbound allocation limit:
- Peer-to-Peer Calls
- Two-Way Calling (Agent First / Customer First)
- IVR-based Campaigns
- OBD Dialer Calls
- Click-to-Call (Two-Way)
These always consume two lines, and outbound concurrency follows the 50% / 80% rule.
7. How to Increase or Raise Your Outbound Limit
Option 1: Increase total channel lines
More lines = more outbound capacity.
Request via:
- Your Account Manager, or
- Support ticket → Category: "Increase channel lines"
Option 2: Switch to One-Way Dialing (if applicable)
This immediately increases concurrency because each call uses only one line.
Ideal for:
- Toll-free one-way setup (using purchased fixed DID)
- Large campaigns
- Notification/alert calls
Option 3: Adjust outbound allocation
If inbound traffic is low, MyOperator can shift more channel lines to outbound.
Example: From 80 → 90% outbound (case dependent)
Eligibility: via AM + internal technical approval.
Option 4: Add a Fixed DID for Toll-Free One-Way
For toll-free accounts, One-Way requires a purchased dedicated DID.
8. Edge Cases & Considerations
Scenario | Impact |
|---|---|
Transfers / Conferences | Temporarily consume extra lines |
High inbound peaks | Outbound pool shrinks automatically |
Auto-dialers dialing too fast | May cause 486 BUSY or 503 network errors |
No free lines | OBD re-queues the number automatically |
9. When to Escalate
Escalate to Tech Support if:
- You see capacity exceeded errors repeatedly
- OBD jobs stall even with available lines
- Campaigns are not using the full available concurrency
Share:
- UID
- Outbound method (two-way, peer-to-peer, IVR)
- Call timestamps
Updated on: 12/01/2026