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Digium VoIP Gateways.

Digium G-Series Appliances


What Makes Digium Gateways So Reliable?

Digium IP Media Gateways are industrial grade high-performance appliances. The combination of a state of the art embedded hardware architecture and a software architecture built upon the Asterisk communications engine gives the G-Series its rock-solid reliability.

Digium is the global leader in the manufacture of telephony interfaces cards. Companies have come to trust Digium quality which has been ISO 9000 certified since 2008. When we designed our VoIP Gateway appliances we built upon our years of experience engineering high-quality interfaces. We chose an embedded design so there are no moving parts. This means Digium Gateways run cool and last long.

Asterisk is the world's leading open source communications platform. Deployed in over 170 countries around the world from small businesses to Fortune 500 companies, Asterisk is the engine to use when your business needs to rely on its communications. By leveraging the power of Asterisk, Digium is able to engineer gateways with amazing performance. And, because Asterisk is open source, Digium gateways provide high quality media conversion at an extremely compelling price-point, making Digium Gateways the best value on the gateway market.

G080 Series Gateways

Digium’s G080 Series VoIP Gateways are 8-port analog gateways available in 3 separate configurations: 8 FXO ports, 8 FXS ports, & 4 FXO with 4 FXS ports.

G100 Gateway

Digium’s G100 VoIP Gateway is a single port software-selectable T1/E1/PRI appliance that supports up to 30 concurrent calls

G200 Gateway

Digium’s G200 VoIP Gateway is a dual port software-selectable T1/E1/PRI appliance that supports up to 60 concurrent calls.

G400 Gateway

Digium’s G400 VoIP Gateway is a 4-port software-selectable T1/E1/PRI appliance that supports up to 120 concurrent calls.

G800 Gateway
Digium’s G800 VoIP Gateway is an 8-port software-selectable T1/E1/PRI appliance that supports up to 240 concurrent calls.


Public Switched Telephone Network T1/E1/PRI to VoIP

• A VoIP gateway can connect a modern VoIP-only system, for example a virtualized IP PBX, to a PSTN PRI trunk.

Public Switched Telephone Network Analog to VoIP

• A VoIP gateway can connect a modern VoIP-only system to analog telephone lines, analog telephones, and fax machines via FXO/FXS ports.

VoIP Provider to Legacy PBX

• An IP Media Gateway can be used to upgrade a legacy business phone system allowing it to use a SIP trunk out to an ITSP. SIP Trunks are more cost-effective than expensive legacy E1 lines.

Legacy PBX to IP PBX Migration

• The SIP gateway also acts as a bridge connecting a legacy PBX via a PRI interface and an IP PBX via a SIP connection to support a migration initiative

VoIP Gateway Terms / Acronyms:

• VoIP - Voice over IP
• SIP - Session Initiation Protocol
• IP - Internet Protocol
• TDM - Time Division Multiplexing
• PRI - Primary Rate Interface
• ISDN - Integrated Services Digital Network
• PSTN - Public Switched Telephone Network
• ITSP - Internet Telephony Service Provider
• FXO - Foreign Exchange Office
• FXS - Foreign Exchange Subscriber

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