Flex voice and PBX services

Extensions, numbers, hosted PBX options, isolated voice systems, and managed phone support.

Flex Extension

Extension on an existing Flex/main number with basic voicemail and support.
Provisioning is manual/managed until the backing service template is verified. Billing cycles enabled monthly, quarterly, semiannual, and annual.

Flex Own Number

Own number plus extension setup when compatible provider/number is available.
Provisioning is manual/managed until the backing service template is verified. Billing cycles enabled monthly, quarterly, semiannual, and annual.

Flex PBX User

PBX user with extension, routing, voicemail, and desktop FlexPhone app support.
Provisioning is manual/managed until the backing service template is verified. Billing cycles enabled monthly, quarterly, semiannual, and annual.

Flex PBX Managed

Managed PBX setup using the cloned Flex VM path or shared Flex environment.
Provisioning is manual/managed until the backing service template is verified. Billing cycles enabled monthly, quarterly, semiannual, and annual.

Flex Isolated Install

Docker-hosted or isolated custom Flex install using compatible VOIP providers such as Callcentric when configured.
Provisioning is manual/managed until the backing service template is verified. Billing cycles enabled monthly, quarterly, semiannual, and annual.

Flex DID Number 0 Available

Flex DID Number covers management and support for a phone number used with Flex voice services. Provider pass-through costs, availability, porting, and account requirements are confirmed before activation.

Flex Department 0 Available

Flex Department provides PBX routing, voicemail, and reporting support for a small team or department. Activation includes extension, caller flow, and support review.

Flex Isolated PBX 0 Available
  • 20 GB. Activation includes number/provider compatibility and maintenance planning. Flex Isolated PBX provides an isolated PBX environment using a compatible container or virtual-machine path. Storage guide
Flex Dedicated PBX VM 0 Available
  • 80 GB. Activation requires provider, routing, security, and maintenance review. Flex Dedicated PBX VM provides a dedicated PBX virtual machine with Cockpit access, backup planning, and SIP checks. Storage guide

Recommended hosting option: InterServer hosting (affiliate link; we may earn a commission).