Connect local PSTN lines
Use FXO access when the carrier or existing site provides analog telephone lines.
Add the lines your PBX needs.
Integrate external analog, digital, and cellular lines into the PBX through a controlled SIP connection. Match each line type to the required interface while keeping call numbering and routing under the existing PBX.
The connection gap
The PBX may be operating properly but still lack the line interface the site needs.
A new carrier, branch office, backup path, or capacity requirement may introduce analog, digital, or cellular lines that the existing PBX cannot connect to directly.
OpenVox gateways translate the required line type into SIP, allowing the PBX to add external calls without changing its role in the overall voice design.
Add high-capacity trunks
Use digital gateway capacity for documented E1/T1/J1 and signaling requirements.
Use a mobile voice path
Add cellular channels as a primary, supplementary, or backup trunk, depending on the deployment.
Combine line roles
Assign each trunk group to a specific route, site, or continuity requirement.
Convert each local line type into a role the PBX can use
Analog, E1/T1/J1, and cellular services enter through different gateway roles, then reach the PBX through a controlled SIP connection.
Use the gateway family that matches the carrier connection.
Analog, digital, and cellular gateways solve different line access problems and should not be treated as interchangeable.
Verified gateway roles for external lines.
Based on OpenVox analog, digital, cellular, and SIP documentation.
Analog PSTN access
OpenVox FXO products connect analog lines to SIP and IP-PBX environments.
E1/T1/J1 options
Documented models support selectable digital trunk and signaling roles.
Mobile voice channels
OpenVox cellular products provide GSM/WCDMA/LTE voice access.
Define the objective during design
Capacity, call direction, and primary or backup routing are confirmed before selection.
Match the next line to your PBX plan.
Share the carrier interface, channel requirements, phone numbers, current PBX, and intended primary or backup role. OpenVox can help identify the appropriate gateway family.
Related products
OpenVox iAG800 V2 Series Analog VoIP Gateway
Supports 2/4/8 FXO/FXS combo ports; Uses standard SIP protocol; Compatible with leading IMS/NGN platforms, IPPBX, and SIP servers.
OpenVox DGW-L302 Series E1/T1/PRI VoIP Gateway
Supports 2 software-selectable T1/E1/PRI interfaces; supports 60 concurrent calls.
OpenVox SWG-3008 G/L Series Wireless Gateway
Supports multiple codecs; high interoperability with terminals; supports a wide range of protocols
Let’s discuss your project
Describe your requirements. Our team can help you select and plan your OpenVox solution.