Indoor Speakers
Paging Controller
Outdoor Speakers
IP Amplifier & Gateway
Paging Microphones
Basic IP Phones
Wifi Phones
Executive IP Phones
Video Phones
Duc-series
FXS/FXO Gateways
E1/T1 Gateway
Unmanaged Switches
Managed Switches
Industrial Switches
Access Points
Safety Intercoms
Veda Series
Divine Series
Tatva Series
VoIP Office
Call Center Solutions
Network Communications
Public Safety
Video & Security System
Highway Communication
Intercom System
IP Paging Solutions
Healthcare
Hospitality
School & Universities
IT Office
SMEs and SMBs
Industries
Public Address System
VOIP Phones
VOIP PBX
VOIP Gateways
Networking Solutions
Call Center Headsets
Emergency Intercom Stations
Dasscom E1/T1 VoIP Gateways are built for enterprises and service providers that demand high-capacity, reliable digital trunking. These gateways connect traditional PBXs and PSTN lines to modern IP networks using E1/T1 digital interfaces, ensuring seamless integration with SIP-based platforms. They offer carrier-grade voice quality, echo cancellation, and failover protection. With support for multiple simultaneous calls, flexible routing rules, and SNMP-based management, they’re ideal for large-scale deployments, telecom infrastructure, or hybrid telephony setups. Rugged design, advanced security, and high throughput make them the preferred choice for businesses looking to scale their VoIP systems without overhauling legacy setups.
E1/T1 Gateways: High-Capacity Digital Trunking for Enterprise Communication
Modern enterprises require reliable, high-bandwidth communication systems that bridge legacy PBXs and modern VoIP infrastructures. Dasscom’s E1/T1 VoIP Gateways deliver just that — robust, scalable, and efficient digital trunking designed to handle heavy call volumes without compromising on quality. Built for performance-driven businesses and telecom operators, these gateways ensure seamless interoperability between SIP and PRI networks, enabling organizations to migrate to IP telephony while preserving existing systems and investments.
With advanced routing, echo cancellation, and redundancy features, Dasscom’s PRI VoIP Gateways guarantee uninterrupted communication and enterprise-level call quality. Whether used in large corporations, contact centers, or telecom networks, they form the backbone of high-capacity voice transmission with the flexibility of IP.
Bridge SIP and PRI Networks with Ease
Dasscom’s SIP to PRI Gateway solutions are engineered for smooth integration between analog and IP worlds. They allow traditional PBX systems to connect with modern SIP-based networks, enabling a hybrid telephony setup that’s both cost-effective and future-ready.
Likewise, the PRI to SIP Gateway capability allows enterprises to route digital calls over VoIP networks, optimizing bandwidth usage and reducing communication costs. With compatibility across standard ISDN PRI interfaces, these gateways ensure reliable interconnection between multiple branch offices or telecom networks.
Dasscom gateways follow the ITU-T standards for digital communication, supporting E1/T1 interfaces and full-duplex voice transmission with carrier-grade reliability.
DUC-E1L: Enterprise-Grade E1/T1 Gateway for Modern Networks
The Dasscom DUC-E1L is a high-performance PRI VoIP Gateway purpose-built for enterprises and service providers needing secure and efficient E1/T1 connectivity. It features a single E1/T1 port supporting 30 B-channels for simultaneous voice or data calls and 1 D-channel for signaling.
Key features include:
- SIP to PRI Gateway Functionality: Seamlessly connects IP-based systems with legacy PRI trunks.
- PRI to SIP Gateway Mode: Allows traditional PBX systems to connect with SIP trunks for enhanced flexibility.
- Carrier-Grade Voice Quality: Features advanced echo cancellation and jitter buffering for crystal-clear audio.
- Failover Protection: Ensures business continuity even during network disruptions.
- Simplified Management: Intuitive web-based interface for setup, monitoring, and diagnostics.
With its plug-and-play configuration and compatibility with popular IP PBXs and VoIP platforms, the DUC-E1L makes enterprise-grade communication both accessible and scalable.
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Why Choose Dasscom E1/T1 Gateways
Dasscom’s PRI VoIP Gateways stand apart for their combination of reliability, flexibility, and performance. Here’s what makes them ideal for enterprise and telecom deployments:
| Feature | Benefit |
| Dual SIP and PRI Connectivity | Enables hybrid telephony setups between digital and IP systems. |
| High Call Capacity | Supports multiple concurrent channels for large-scale operations. |
| Superior Audio Quality | Equipped with echo cancellation, adaptive jitter buffer, and packet loss concealment. |
| Secure Communication | Ensures encrypted SIP signaling and RTP media streams. |
| Easy Deployment | Web-based configuration and SNMP monitoring simplify network management. |
| Interoperability | Tested with top IP PBX systems from Avaya, Cisco, Huawei, and Broadsoft. |
Ideal Use Cases
- Enterprises transitioning from traditional PRI lines to SIP trunks.
- Telecom carriers establishing hybrid infrastructures for digital and IP voice routing.
- Contact centers requiring high-volume, low-latency call connectivity.
- Government or institutional networks maintaining legacy PBX systems alongside new VoIP setups.
Dasscom gateways are built to perform in mission-critical environments, ensuring uptime, clarity, and reliable connectivity across every call.
Seamless Migration Without Infrastructure Overhaul
The biggest challenge for enterprises upgrading to VoIP lies in integrating new IP systems with existing PRI-based networks. Dasscom’s SIP trunk to PRI Gateway offers a smooth transition path — eliminating the need for costly equipment replacement.
By connecting SIP trunks directly to legacy PBXs, the gateway allows businesses to modernize communication infrastructure at their own pace while benefiting from lower call tariffs and improved scalability.
In reverse, organizations that already have VoIP infrastructure can use the PRI to SIP Gateway feature to connect with traditional telecom networks, ensuring compatibility and reach.
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A Trusted Alternative to Grandstream PRI Gateway
While global brands like Grandstream PRI Gateway have long served enterprise markets, Dasscom’s locally optimized E1/T1 series provides equal performance with enhanced adaptability for Indian telecom environments. From pricing advantages to regional support, Dasscom gateways offer the same level of reliability and standards compliance — making them a preferred choice for domestic and international deployments alike.
Why Dasscom E1/T1 Gateways Are the Smart Choice
- Connect legacy PBXs and modern SIP trunks effortlessly.
- Lower operational costs with optimized VoIP routing.
- Enterprise-grade voice and data transmission over E1/T1 interfaces.
- Simplified configuration with flexible routing and monitoring options.
- Backed by Dasscom’s expertise in VoIP and PBX technologies.
Dasscom’s E1/T1 gateways are built to grow with your business — enabling you to leverage IP communication benefits while maintaining your existing infrastructure.
