Secure Firewall Traversal

The LifeSize® Transit™ is a complete firewall and NAT traversal solution, by securely traversing firewalls it allows people to make calls within and across enterprises and organizations. The end result is secure, simple to use video communications.

Connect Anywhere, Securely

IP communications made connecting customers, suppliers, partners and collegues around the globe easier and more cost effective. However, conducting video calls by passing through a network firewall meant opening and closing communication ports, this left networks vulnberable to attacks.

Secure, seamless video calls with customers, partners, suppliers and remote colleagues using firewall and NAT traversal.

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LifeSize Transit will provide a better communications experience without compromising on security. This enterprise-class firewall/ NAT traversal solution will be seamless to end users and easy to set up and manage. A secure path is created through a firewall without compromising IP security.

LifeSize transit gives the user the option to enable TCP communications instead of UDP to support more security-conscious environments. In a future release LifeSize Transit will supporvt HTTP communications. Allowing users to close down selected open port types allows maximum flexibility and security in their traversal implementation.

Simple to Use

LifeSize firewall traversal technology makes it easy for LifeSize Room™ to communicate across a firewall to another LifeSize system or other vendor system.

LifeSize Transit includes a SIP-based plug and play appliance that bridges any firewall or NAT boundary including strict corporate firewalls. The LifeSize Transit solution will also work with most common SIP-based endpoints.

High Performance, Scalable

LifeSize Transit Server is scalable and supports up to 20 simultaneous calls up to 1Mbps. Clustering support is available to both increase capacity and increase system resiliency. LifeSize Transit Client will support up to 10 simultaneous calls up to 1Mbps.


LifeSize Transit Server

The LifeSize Transit Server provides signaling, media and registrar services in a single appliance, handling up to 500 device registrations and up to 20 simultaneous 1 Mbps calls. Using Internet addressing and domain technology, users can register endpoint devices utilizing URI dialing for easy naming conventions (

A complete firewall and NAT traversal solution that enables secure, inter-organization video communication.

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LifeSize Transit Connector

All LifeSize Room™ video communications systems include the LifeSize Connector software at no additional licensing fee, enabling the LifeSize Transit solution out of the box and making LifeSize Room ready for firewall / NAT traversal support.*

LifeSize Transit Client

The LifeSize Transit Client enables non-LifeSize video endpoints to securely traverse firewalls. LifeSize Transit Client is both easy to install and easy to use, and will support up to 20 third-party endpoints in its base configuration, with up to

The Result

Increase the reach of video and IP communications and experience secure, seamless and productive communication with anyone.

Features and Benefits

  • Simple to use, enterprise-class firewall and NAT traversal
  • High performance and scalable - 20 simultaneous calls up to 1Mbps
  • Plug and play appliance solution with pre-installed software
  • Maintain all video communication features
  • Works with virtually any SIP client and any firewall/NAT device
  • UDP and TCP support
  • Clustering support available
  • URI addressing with DNS resolution
  • Numeric, alphanumeric or alpha names (ex.
  • Data Sheet

LifeSize Transit Product Details

LifeSize Transit Server

LifeSize Transit Client



  • Simple SIP-based appliance server
  • Signaling, media and registrar services
  • 500 device registrations
  • Up to 20 simultaneous 1 Mbps calls


  • Support for up to 20 non-LifeSize system in its base configuration, w/ up to 10 simultaneous 1 Mbps calls

List Price: $11,999.00

List Price: $5,999.00


*A software upgrade is available for LifeSize Room systems that are not v2.0 or higher to include the LifeSize Transit Connector software.

© – Tele-Communication, Inc. – 7100 Old Katy Road, Houston, Texas 77024