How Can We Configure the System to Dial a phone number, Pause, Then a 4-Digit Code and # for Call Patching?

Overview

Some call patching or billing workflows require dialing a phone number (e.g., 91-XXX-XXX-XXXX), pausing, then entering a 4-digit authorization code followed by the pound key (#). This guide explains how to configure this dialing behavior in EVO Voice or supported SIP devices.

Configuration Steps

🔧 1. Device-Level Dial String Configuration

If you're using a physical desk phone or softphone, check if your device supports programmable dialing strings:

• Example format for dialing:

  91XXXXXXXXXX,,1234#
  

  • , = 2-second pause (repeat for longer pauses if needed)

  • 1234# = 4-digit authorization code followed by pound

• How to set this:

  • Go to the device's speed dial or programmable key settings

  • Input the full dialing string as above

  • Save and test the configuration

⚙️ 2. EVO Voice System Rule Configuration

If dialing is initiated through EVO Voice routing rules:

• Open Flows or Nodes

• Look for the Dial Out or Patch Node

• In the node’s settings, see if the system supports suffix strings after the dialed number

• Use available syntax (e.g., pause, code) if supported; if not, request support team customization

🛠 3. Custom Script (Advanced)

If system-level automation is needed:

• Request a custom logic node or script that:

  • Initiates call to 91XXXXXXXXXX

  • Triggers a timed DTMF send after call connects

  • Sends 1234# as DTMF tones

• This may require Evo support or PBX scripting

Testing the Setup

• Initiate a test call using the configured method

• Ensure:

  • The call connects to the external number

  • A pause occurs

  • The authorization code and # are accepted by the destination

Notes

• Pauses using commas , may behave differently on certain devices.

• Not all phones or systems allow complex dial strings—check compatibility first.

• For VoIP systems, DTMF tones must be configured correctly (RFC2833 or in-band).