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Overview

Organization Admins configure voice telephony in Organization Settings → Voice: phone providers (Twilio or SIP Trunking), SIP domains and ingress regions, and org-wide visibility into numbers and voice agents. After a provider is configured, app builders build a voice agent and add a phone number in each app.

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Prerequisites

  • Organization Admin access
  • For Twilio: a Twilio account with Account ID and Auth Token (you provision and pay for telephony on your Twilio account)
  • For SIP Trunking: credentials from your SIP trunk provider and access to configure a callback URL on that provider

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Choose a phone provider

Both paths use the same agent and phone service setup in your apps, including outbound Initiate Call automations. Voice usage also incurs model/LLM cost for the conversation, separate from telephony.

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Add a phone provider

You must configure a phone provider before you can provision numbers or assign a provider to a phone service.
  1. Go to Organization Settings → Voice.
  2. Open the Phone Providers tab.
  3. Click + Add Phone Provider.
  4. In the Add Phone Provider dialog, select a Type and complete the fields for that provider:
  • Type: Twilio
  • Name: A display name for this provider
  • Account ID: Your Twilio Account ID
  • Auth Token: Your Twilio Auth Token
Elementum does not create or manage your Twilio account. For help locating or troubleshooting your Twilio credentials, see Twilio’s usage docs.
  1. Click Save.

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Multi-Region SIP Domains

For SIP Trunking, Organization Admins can provision multiple SIP domains and select the ingress region closest to their SIP infrastructure. A nearer region lowers latency for voice calls and helps with global telephony deployments.
  1. On the Phone Providers tab, open or add a SIP domain configuration.
  2. Select the ingress region closest to your SIP infrastructure. Region options and setup instructions appear in the UI alongside the SIP domain fields.
  3. Save your changes.
Use a separate SIP domain when you need distinct routing or regional ingress for different parts of your telephony footprint.

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Organization voice management

The Voice page has three tabs for org-wide management:
View, add, and edit every provisioned number across the organization. Each number shows its provider, type, gateway, and language at a glance, and the list is searchable and sortable.

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Next steps

Agent Phone Integration

Build the voice agent, add a phone number in the app, and configure caller access.

Deploy apps between environments

Phone numbers are environment-specific and do not transfer with a deployment.