# Managing Secure Phone Numbers

## Phone Numbers in a Secure Environment

### PCI Numbers

Plum Voice hosts DEV applications that require PCI-compliance in a secure environment on PCI-compliant servers. This environment is on a completely separate network from out non-PCI servers. 

Any phone numbers originally provisioned within Plum's PCI environment can be used to deploy DEV applications that have PCI security requirements. Typically, provisioning requests sent directly to <provisioning@plumgroup.com> that explicitly request PCI-compliant phone numbers fall into this category.

### **Non-PCI Numbers**

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Customers **cannot** use Plum's PCI-environment for testing or QA purposes.
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Any phone numbers used for testing and QA purposes, and the application associated with them, are non-PCI numbers and hosted on non-PCI servers.

It is possible to convert a non-PCI number to a PCI-compliant number. To move a non-PCI phone number to the PCI environment for production use, [contact Plum Support](https://portal.plumvoice.com/hc/en-us) to initiate the migration process.&#x20;

Once the migration process completes, the application associated with the number must be re-deployed in order to migrate the application to Plum's PCI servers.&#x20;