Ingate Session Border Controllers (SBCs)

Ingate Systems is based in Stockholm, Sweden and has filials and distributors all around the world. Our security technology dates back to 1996 and since 2001, SIP has been the focus when designing our award-winning SIP-aware firewall products, making Ingate the only choice for enterprises and service providers planning a secure, flexible and interoperable communications solution. Ingate products are a perfect fit for any SIP-based VoIP/UC installation and is often cited by users and media for their ease of use. More than 10,000 Ingate products have been installed worldwide.

What is a Session Border Controller?

A Session Border Controller is a device that connects to an existing network firewall to seamlessly enable SIP communications (Session Initiation Protocol). While traditional firewalls block SIP traffic – including mission-critical applications like Voice over IP (VoIP) – the Ingate SIParator® SBC resolves this problem, working in tandem with your current security solutions.

The Ingate SIParator® / Firewall SBC RTS-FW

The Ingate SIParator® is a powerful, flexible and cost-effective Enterprise Session Border Controller (E-SBC) for SIP connectivity, security and interoperability, such as connecting PBXs and Unified Communications (UC) solutions to SIP trunking service providers.

The Ingate Firewall®, which is always included in the product, makes the Ingate SIParator an all-in-one appliance for data security as well as session border control.

Ingate's SIParators®/Firewalls® are available in a range of models:

Ingate E-SBCs Session Border Controller, SBC, E-SBC

The SIParator simplifies SIP trunking and makes it easy to connect remote UC end points, aggregate SIP trunks and distribute sessions between sites and service delivery points. It's utilized for Real-Time communications security, SIP interoperability and extensive connectivity. The SIParator® is compatible with all existing networks and comes with a standard SIP proxy and a SIP registrar. It has support for NAT and PAT as well as for TLS and SRTP to encrypt both SIP signaling and media, eliminating the security issue most commonly associated with using enterprise VoIP.

The flexible system of add-on licenses allows any enterprise to enhance the SIParator®/Firewall® solution to meet their needs at any given moment.

With more than 10,000 installations worldwide, the Ingate SIParator® comes in a wide range of capacities, and has been used by retail companies, financial institutions, industrial firms, government agencies, call centers and small-to-large enterprises.

The Ingate Software SIParator® / Firewall SBC RTS-FW

The SIParator®/Firewall® is available as hardware, and also as a software deliverable for virtual machines (VM) or the cloud  (Amazon Web Services, Microsoft Azure, OpenStack, Google Cloud Platform).

Ingate E-SBCs

Ingate's Software SIParator®/Firewall®, which offers the same security and SIP-enabling functionality found in Ingate's hardware-based E-SBCs, is designed to be installed on a virtual machine using one of several hypervisors. It is intended for IP-PBX vendors, system integrators and customers deploying a large number of Ingate products on their own hardware platform.


Businesses connecting their infrastructure to a SIP Trunk, or VoIP connection, require an SBC for security, interoperability and transcoding. An SBC will automatically do the call translations using built-in interoperability features, and also translate the audio with onboard transcoding capabilities.

SIParator Functionality

The Ingate SIParator®/Firewall® E-SBC for SIP Trunking

Solving the Firewall and NAT Traversal Problems for SIP-based VoIP

Ingate Advanced SIP Routing

Ingate Remote SIP Connectivity

Ingate Quality of Service

Ingate VoIP Survival

Ingate SIP Registrar

Watch the TMC interview where Ingate's Steve Johnson discusses Ingate's Session Border Controllers and their cloud realization on Amazon Web Services, Microsoft Azure, OpenStack and Google Cloud Platform.

Ingate SIParator®/Firewall®

Ingate SIParator®/Firewall®

The SIParator®/Firewall® is a device that connects to an existing firewall to seamlessly allow the traversal of SIP-based communications. It is cost effective and compatible with all existing firewalls and operating systems.

It prevents unauthorized access to and from enterprise networks. All messages entering and leaving the network are routed through the SIParator®/Firewall®, which examines each packet and blocks those not explicitly authorized to pass.  

Ingate SIParator 21

Ingate SIParator®/Firewall® S22

The S22 is a powerful tool that offers small businesses, branch offices and home workers complete support for IP communications based on SIP. With the SIParator 22, these businesses can leverage the same productivity and cost-savings benefits of Voice over IP and other IP-based communications as large corporations.

It manages up to 800 concurrent RTP sessions.

Ingate SIParator 52

Ingate SIParator®/Firewall® S52

The Ingate SIParator®/Firewall® S52 is a powerful tool for businesses wanting to step up to the next level of using Voice over IP and other IP-based realtime communications, and to do so not only within the company, but outside the enterprise as well.

It manages up to 2000 concurrent RTP sessions.

Ingate SIParator S95/S97/S98

Ingate SIParator®/Firewall® S95/S97/S98

The Ingate SIParator®/Firewall® S95/S97/S98 are E-SBCs that offers large enterprises a controlled and secured migration to Voice over IP and other live communications, based on SIP. With the Ingate SIParator, E-SBC even the largest of businesses, with branch offices around the world and remote workers, can easily harness the productivity and cost-saving benefits of VoIP and other IP-based communications while maintaining current investments in security technology.

The Ingate SIParator® 95/97/98 are high capacity, high performance E-SBCs designed for large enterprises, call centers and service providers, and can handle up to 20,000 RTP sessions.

Ingate Software SIParator®/Firewall®

Ingate Software SIParator®/Firewall®

Ingate's Software SIParator®/Firewall® is the software version of Ingate's E-SBCs, - the solution for enterprises that want to deploy Ingate products on their own hardware platforms. The Software SIParator®/Firewall® is designed to be installed on a virtual machine using one of several hypervisors. Maximum RTP session capacity depends on hardware.

Ingate Modules and Licenses

Ingate's included features and the flexible licensing system give any enterprise the flexibility to create the SIParator®/Firewall® that solves their specific need for the moment. All licenses can be added at any time.


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