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

# Using Your Trial Account

> Recommended process to get the most value from Telnyx trial credits.

Follow this process to make the most of your trial credit and stay within trial limitations.

<Steps>
  <Step title="Verify a phone number">
    A [verified number](https://portal.telnyx.com/#/numbers/verified-numbers) is essential to test Voice and Messaging. Use a mobile phone number that you control.

    Keep in mind that trial accounts have limits on delivery attempts and the number of changes allowed. Once the allowance is depleted, [upgrade your account](/docs/account-setup/account-upgrade).
  </Step>

  <Step title="Search for and purchase a phone number">
    Search results show only local (to the signup origin) numbers in full +E164; other results appear partially redacted.

    A successful purchase depends on inventory availability, sufficient account balance, and local jurisdiction [documentation rules](https://portal.telnyx.com/#/numbers/requirements). Only **one** phone number order is allowed during the trial, regardless of the outcome.
  </Step>

  <Step title="Test calling workflows">
    Use one of the following tutorials to place calls:

    * [SIP Trunking](https://developers.telnyx.com/docs/voice/sip-trunking/get-started)
    * [Programmable Voice](https://developers.telnyx.com/docs/voice/programmable-voice/get-started)
    * [TeXML](https://developers.telnyx.com/docs/voice/programmable-voice/texml-setup)

    Regardless of how the call is created, the destination is limited to the verified phone number from Step 1, and inbound calls must also originate from that number. Check [trial voice limits](/docs/account-setup/levels-and-capabilities/trial).
  </Step>

  <Step title="Test messaging workflows">
    Use the [Send Message](https://developers.telnyx.com/docs/messaging/messages/send-message) tutorial to send SMS.

    Outbound messages must target the verified phone number you configured, and inbound messages must also originate from that number. Check [trial messaging limits](/docs/account-setup/levels-and-capabilities/trial).
  </Step>
</Steps>