1-Port E1/T1/J1 High-Density Digital VoIP Gateway
The Grandstream GXW4501 is a carrier‑grade 1‑Port Digital VoIP Gateway that enables seamless integration between E1/T1/J1 trunks and VoIP networks. This gateway provides enterprises, service providers, and contact centers with a reliable, high‑capacity solution to bridge traditional digital telephony circuits with next‑generation SIP‑based networks, ensuring smooth, scalable migration to IP telephony.
Powered by Grandstream's advanced VoIP technology, the GXW4501 supports up to 30 simultaneous calls, advanced security protocols, multiple voice codecs, and failover functionality. It provides interoperability with most softswitches, PBXs, and SIP servers, making it a versatile and dependable gateway for digital migration projects.
Features :
Loaded with powerful features, the GXW4501 simplifies system management with built‑in web configuration, IVR diagnostics, remote provisioning, and secure TLS/SRTP encryption. As part of the GXW4500 series, it offers exceptional voice quality, redundancy options, and carrier‑class reliability.
Advanced Options :
Whether used in enterprise backbones, call centers, or ITSP environments, the GXW4501 facilitates robust SIP‑trunking and interoperability. Its hot‑swappable design, redundancy support, and easy integration make it an excellent choice for carriers and businesses requiring digital VoIP migration.
Product Key Features
- 1-Port Digital VoIP Gateway supporting E1/T1/J1 interfaces
- Up to 30 simultaneous calls
- Supports popular voice codecs (G.711, G.722, G.723, G.729, iLBC, etc.)
- Integrated echo cancellation and jitter buffer
- Secure encryption with TLS and SRTP
- Compatible with SIP-based PBXs and IMS platforms
- Failover and redundancy support
- Simple web-based management & auto-provisioning
- Backed by Grandstream reliability
Reliability & Performance :
The Grandstream GXW4501 provides enterprise‑grade uptime, digital clarity, and smooth SIP interoperability. By leveraging carrier‑grade security and redundant design, it delivers consistent call quality and long‑term stability for demanding VoIP deployments. Its proven architecture enables organizations to transition seamlessly from TDM to IP environments.
Key Features :
- Connects legacy digital trunks (E1, T1, J1) to VoIP
- 1 Port with 30 concurrent calls
- Supports PRI and CAS signaling
- HD voice quality with wideband codecs
- Integrated security & encryption
- Hot-swappable & resilient design
- Carrier‑grade hardware built for uptime
- Tight SIP interoperability
Specifications :
| Specification | Details |
|---|
| Part Number | GXW4501 |
| Brand | Grandstream |
| Product Type | Digital VoIP Gateway |
| Interface | 1-Port E1/T1/J1 |
| Concurrent Calls | Up to 30 |
| Protocols Supported | SIP (RFC3261), TCP, UDP, RTP/RTCP, HTTP/HTTPS |
| Signaling | PRI (E1/T1), CAS, SS7 (varies by config) |
| Supported Codecs | G.711µ/a, G.722, G.723.1, G.729, iLBC, GSM-FR |
| Voice Quality | HD voice with jitter buffer and echo cancellation |
| Encryption | TLS, SRTP 128-bit |
| Management | Web GUI, CLI, TR-069, SNMP |
| Redundancy | Failover & Load-sharing |
| Dimensions | Approx. 440mm x 44mm x 300mm (1U rackmount) |
| Weight | ~4.5kg |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -20°C to +70°C |
| Power Supply | AC 100-240V, 50/60Hz |
| Compliance | RoHS, CE, FCC |
| Warranty | Backed by Grandstream Limited Warranty |
| Use Cases | Enterprise, Call Center, ITSP, Metro VoIP |
