Huawei eSpace U1911 Unified Gateway - Huawei Products
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Huawei eSpace U1911 Unified Gateway

Huawei eSpace U1911 unified gateway (U1911 for short) is a core voice gateway in the Huawei Unified Communications (UC) solution. It works with Huawei IP terminals and UC applications to provide professional IP telephony (IPT) and UC services.
U1911 uses the SIP architecture, features high integration, and supports 100 users per subrack. U1911 also provides powerful networking capabilities. In the downstream direction, it supports both narrowband and broadband access, allowing for hybrid networking of analog phones and IP phones. In the upstream direction, it can connect to the public switched telephone network (PSTN) or to voice switches in private networks using digital, analog, and broadband SIP trunks.

High integration and impressive array of functions

  • Extensive IPT services
  • Built-in hi-fidelity audio conferencing, with multiple conferencing modes available
  • One Number Link You (ONLY), allowing users to answer incoming calls from anywhere, at any time, in the way that users prefer
  • Built-in voice mailbox, recording messages from unanswered callers so users never miss any important calls
  • UC application extension

Effective cost control

  • Number analysis and whitelist/blacklist
  • 32-level customized call rights
  • Password-based call barring
  • Intelligent routing, saving communications costs

Quick deployment and easy maintenance

  • GUI-based deployment tools for easy and quick installation
  • Unified network management system, helping improve management and maintenance efficiency
  • Built-in web management system for convenient operations

A U1911 is deployed at the headquarters of an enterprise to provide call control services for users over the enterprise's network. U1911 at the headquarters can connect to the PSTN using narrowband and broadband trunks. And it supports multiple types of terminals, including SIP phones, integrated access devices (IADs), analog phones, and fax machines , to provide a rich array of voice services for users. When UC application servers are deployed, the system can aslo provide UC services such as presence, instant messaging (IM), and multimedia conferencing.

Item Specifications
Maximum number of users 100 (a maximum of 100 SIP users or 64 FXS ports for analog users)
Terminal type Analog phones, IP phones, video phones and soft clients
Port 24 FXO ports, 6 E1/T1 ports, or 8 BRI ports
Trunk protocol SS7, R2, PRI, QSIG, SIP, BRI
Codec G.711a/μ, G.729, G.729a, G.729b, G.729ab, iLBC, G.722, G.722.1, G.722.2
Number of meeting participants A maximum of 60 meeting participants which can be allocated to 20 meeting halls (each hall can support up to 60 participants by maximum)
Built-in voice mail box(optional) A maximum of 12 built-in voice mail channels concurrently
Built-in 16G SD storage card
Power supply AC: 100 V to 240 V, 50 Hz/60 Hz
DC: –38.4 V to –60 V (typical value: –48 V)
Maximum power consumption 150 W (full configuration)
Dimensions (H * W * D) Standard 19-inch 1 U subrack
44 mm * 442 mm * 310 mm
Weight 8 kg (full configuration)
Environment Temperature Storage temperature: –40° C to +70° C
Long-term operating temperature: 0° C to 45° C
Short-term operating temperature: –5° C to +55° C
Relative humidity 5% to 95% (without condensation)
Dustproof Less than 180 mg/m³ dust in the air (Dustproof measures should be taken in the work environment)
System Reliability 99.995%
Maintainability Remote maintenance, automatic configuration, log collection, and Daylight Saving Time (DST)
Manageability Centralized/remote equipment management, signaling tracing, resource management, alarm management, and quick deployment