Shenzhen, China, December 9th, 2025 – OpenVox Communication Co., Ltd., a globally recognized innovator in open-source VoIP gateways, IP communication systems, today announced the official launch of the DGW-L302 and DGW-L304 Series Digital Gateways, expanding its new-generation E1/T1/PRI VoIP gateway portfolio for enterprise and carrier-grade deployments.
The OpenVox DGW-L302/4 is a digital VoIP gateway equipped with E1/T1 interfaces, designed to connect ttraditional digital telephone lines (PSTN and ISDN) with VoIP networks. As a converged media gateway, it enables seamless integration of traditional telephone systems into IP networks, achieving perfect convergence between VoIP telephony and conventional telephone infrastructures.
Users can easily configure and customize the gateway through an intuitive and user-friendly graphical interface. Additionally, it supports powerful API interfaces, facilitating secondary development and deep customization.
Key technical highlights include:
- DGW-L302: Supports 2 software-selectable E1/T1/PRI ports with up to 60 concurrent calls
- DGW-L304: Supports 4 software-selectable E1/T1/PRI ports with up to 120 concurrent calls
- Full support for PRI, SS7, and R2 signaling
- Rich codec suite: G.711A/U, G.723.1, G.729A, iLBC, OPUS, AMR, and AMR-WB
- Dual Gigabit Ethernet ports with Layer 2/3 QoS, IPv4/IPv6, NAT traversal, and cloud-based management
- Comprehensive interoperability with leading VoIP platforms including Asterisk, Issabel, 3CX, FreeSWITCH, VOS, and BroadSoft
The DGW-L302 and DGW-L304 Series are now available worldwide through OpenVox’s global distribution and partner network. For more information about the products, please visit this page.
To request a quote, demo, or technical consultation, contact OpenVox sales at This email address is being protected from spambots. You need JavaScript enabled to view it., or reach out to your local authorized partner. We look forward to your inquiry!
About OpenVox
OpenVox Communication Co.,Ltd., founded in Shenzhen in 2002, is a global leading provider of the VoIP Gateways, IPPBX and open source Asterisk® Telephony Cards with excellent quality and experience. We have been devoted to serving the Small and Medium Business and Large Enterprises with superior quality products that lower communication costs, increase system flexibility and enhance productivity in building IPPBX, Call Center, IVR and Unified Communications Platform.