Overview
In environments where outbound calls require a 4-digit authorization code, you can configure your softphone or Evo Voice dialing string to automatically enter this code after dialing the external number. This streamlines the process and prevents manual input errors.
Example Scenario
When a user dials an outside line (e.g., 9 to get an external line) followed by the destination number (e.g., 91234567890), they are prompted to enter an authorization code (e.g., 1234) to proceed. The goal is to automate this entire sequence.
Dial String Format
Use the following format to configure the dialing string:
9<phonenumber>,1234
🔹 Explanation:
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9— access line for external calls -
<phonenumber>— the target number being dialed -
,— comma acts as a pause (usually 1–2 seconds, depending on the softphone) -
1234— the required authorization code
Some softphones also support multiple commas for longer pauses:
9<phonenumber>,,,1234
You may need to test how many commas (pauses) are needed based on the speed of the prompt.
How to Set This Up in Common Systems
✅ For Softphones (e.g., Zoiper, Bria, 3CX)
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Open your dialer or speed dial configuration.
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Enter the dialing string using the format above.
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Save and assign it to a speed dial or use it directly in the dialer.
✅ For Evo Voice Admins
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Go to Flows > Nodes > Dial Plan (or applicable outbound rules).
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Check if any prefix logic or custom SIP headers are stripping the digits.
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Confirm that comma pauses are supported by the end-point device (some desk phones may need firmware that supports this).
Notes & Best Practices
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Some systems interpret pauses differently (
porwmay be used instead of,). -
Always test with a live number before rolling out to users.
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For desk phones (Polycom, Cisco, etc.), this may require custom dial plans via provisioning.
Need Help?
If you're unsure how to apply this to your specific device or configuration, contact Evo Support with:
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Your softphone/device model
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Sample number format you’re dialing
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Desired code to auto-input