Secure, Encrypted Calls Between Land Lines and a Mobile Workforce

Create a Secure VoIP to PBX Connection

Securely connect to the company PBX to reach offices, customers and employees

Access PBX infrastructure, including conferencing and voicemail, securely from anywhere in the world.

Dramatically reduce calling costs by eliminating international roaming and long-distance charges.

Protection from data interception using military-grade encryption on VoIP calls between mobile devices and secure PBXs.

The Cellcrypt Secure Voice Gateway provides an encrypted VoIP channel that integrates seamlessly with any existing digital PBX infrastructure.


This allows organizations to extend the benefits of their existing PBX features, including voicemail and conference calling, to mobile users with the reduced costs of VoIP and the strong encryption provided by Cellcrypt.


  • Cellcrypt Voice Gateway integrates with SIP-based and legacy PBXs and telephony gateways

  • Cellcrypt secured mobile phones can call other Cellcrypt secured mobile phones

  • Cellcrypt secured PBX landlines can call other Cellcrypt secured PBX landlines

  • In combination with your PBX, the Voice Gateway can route calls to and from office phones or calls out to phones on the PSTN

  • Highly flexible through the use of DTMF to leverage PBX features

Secure, Cost-Effective Access To Your Existing Phone System

The Cellcrypt Voice Gateway interfaces to a wide-range of digital PBXs so that you can leverage and maximize the benefits of your existing infrastructure without the need for a costly rip/replace strategy and by utilizing Cellcrypt’s secure Voice over IP (VoIP) network, international and long-distance call costs are eliminated.

When configured with a PBX the Cellcrypt Voice Gateway allows

any Cellcrypt user to make calls to any non-Cellcrypt-secured

phone connected to the PBX.


The call segment between the Cellcrypt user and the Cellcrypt

Voice Gateway is encrypted providing privacy and security when

making calls from potentially untrusted and international locations to trusted and domestic locations.

Operating Requirements



(Debian / Ubuntu)


Extensible using standard channel drivers and 3rd party analogue and digital telephony cards


Internet connectivity to Cellcrypt Private Switch and connectivity to PBX

Download the Voice Gateway datasheet

Cellcrypt – Communication Security Group



Secure Offices,

7467 Ridge Road, Suite 310, Hanover, MD 21076,


1st Floor,

34 South Molton Street

London, W1K 5RG,



452 Rua Pastor William Schisler Itacorubi,

Florianópolis, SC,