Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided). ESpace U1981 Unified Gateway V100R001C20 Emergency Maintenance.
Huawei U1911 VOIP Gateway with SIP IP Phone PBX Function
The eSpace U1900 series are switches used in Huawei IP Telephony (IPT) solutions. The eSpace U1900 series provide professional voice over IP (VoIP) solutions that meet communication requirements of various enterprises.
The eSpace U1900 series use a highly-integrated SIP softswitch as the core and support both narrowband and broadband services.
The eSpace U1900 series unified gateways are switches used in Huawei unified communications solutions. The eSpace U1900 series unified gateways provide professional voice over IP (VoIP) servies that meet communication requirements of various enterprises.
The U1911 adopts the standard 1U (44.45 mm) shelf. The dimensions (H x W x D) of the shelf are 44 mm x 442 mm x 310 mm. The self can be installed in a 19-inch cabinet that meets the International Electrotechnical Commission (IEC) standard. Figure 1 shows the U1911 front panel.
Item | Indicator | |||
|---|---|---|---|---|
U1911 | U1960 | U1981 | U1980 | |
Dimensions (H x W x D) | 44mm x 442mm x 310mm | 86.1mm x 442mm x 310mm | 264mm x 436mm x 420mm | |
Weight | 8 kg (weight in full configuration) | 10 kg (weight in full configuration) | 32 kg | |
Maximum power consumption in full configuration | 150 W | 220 W | 400 W | |
Input voltage (AC power) | 100 V AC to 240 V AC | |||
Input current (AC power) | 3.5 A | 4.5 A | 6 A | |
Power frequency (AC power) | 50 Hz/60 Hz | |||
Maximum output power (AC power) | 300 W | 500 W | ||
Input voltage (DC power) | -38.4 V DC to -60 V DC; typical value: -48 V DC | -38 V DC to -75 V DC; typical value: -48 V DC, -60V DC | ||
Input current (DC power) | 9 A | 15 A | ||
Maximum output power (DC power) | 350 W | 500 W | ||
Feeder voltage | -38V | |||
Virtual value of ringing voltage | 45Vrms | |||
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 NOTE: Short-term running means that the device works nonstop for not greater than 48 hours and the cumulated working time of the device in a year does not exceed 15 days. | |||
Relative humidity | 5% to 95% (non-condensing) | |||
Ambient particulate concentration | < 180 mg/m3 | |||
Works as a voice PBX in SMEs or as a local access gateway in small and medium-sized branches, providing services for less than 100 users.
A single-node network is suitable for an enterprise with no more than 20,000 users that does not have branches or has branches that do not require local regeneration. In such a network, the unified gateway and a variety of service servers are all deployed at the enterprise's equipment room, and all terminal users register with the unified gateway. If the enterprise has small-sized branches, eSpace IADs can be deployed at branches and function as proxies for user registration to the unified gateway, or IP phones can be deployed at branches and register with the unified gateway.
A centralized call management network can be used for an enterprise with no more than 20,000 users that has branches that require local regeneration. In such a network, the unified gateway functioning as the central node and a variety of service servers are all deployed at an enterprise's equipment room, and all terminal users register with the central node in normal conditions. Unified gateways functioning as branch nodes are deployed at the branches for local outgoing calls and local regeneration.
A distributed call management network in peer-to-peer mode can be used for enterprises with 10,000-30,000 users. In such a network, two or three nodes each deploy a unified gateway, which provides call services for the corresponding node. Different nodes are connected using SIP trunks, through which inter-node calls are routed.
Enterprises with more than 30,000 users can use a distributed call management network where four or more unified gateways are convergent.
The unified gateway provides rich services and ports. It is easy to deploy and maintain.
Rich Services and Ports
- Provides high-quality, built-in voice conference resources and web conference management portal for easy use and management.
- Provides built-in voice mailboxes to implement the voicemail function and prevent call loss.Only the U1911, U1960, and U1981 support this service.
- Supports diverse supplementary services (including One Number Link You (ONLY), emergency call, secretary station, and call barring) to meet different service requirements.
- Supports PRA, SS7, R2, QSIG, AT0, SIP and BRI trunks and integrates narrowband and broadband services.Only the U1911, U1960, and U1981 support BRI signaling. U1980 does not support AT0 trunk.
High Reliability and Low Costs
- The U1911 and U1960 provide 99.995% system reliability, while the U1980 and U1981 provides 99.999% system reliability.
- The U1960 and U1981 support power supply with 1+1 redundancy backup, while the U1980 supports power supply with 2+1 redundancy backup.
- The U1980 and U1981 support active and standby control boards. Services that are interrupted due to network cable faults on the active control board can be restored on the standby control board within 6s; if services are interrupted due to other faults, 1s is required for service restoration. The ongoing voice calls are not affected during an active/standby switchover of the control boards.
- The unified gateway supports two-node cluster in active/standby mode.
- Reduces the enterprise operation and maintenance costs as the IP PBX.
- Supports local regeneration when functioning as the branch's access gateway in the centralized call management network scenario.
- Can be expanded and upgraded to UC applications, protecting customers' investments.
Easy Deployment and Maintenance
- Supports various networking modes, including the single-node network and centralized call management network. Allowing for flexible deployment.
- Supports unified network management, meeting requirements for centralized operation and maintenance (O&M) and highly efficient management.
- Provides a built-in web management system for quick deployment and routine configuration.
- Provides a built-in web self-service system for conference scheduling and personal service management.
- Provides the local maintenance terminal (LMT) for routine maintenance.
The unified gateway uses a highly-integrated SIP softswitch as the core and supports both narrowband and broadband services, helping effectively improve communication efficiency and reducing operating expense (OPEX).
The unified gateway can connect to analog phones and IP phones at the same time:- Connect to local analog phones directly. (U1980 cannot directly connect to local analog phones.)
- Use IP bearer networks to connect to analog phones through eSpace IADs.
- Use IP bearer networks to connect to IP phones.
The unified gateway can connect to PSTN networks or dedicated network voice switches through digital, analog, and broadband SIP trunks.
1.Trade terms: FOB,CIF,CFR,etc
2.Price Terms: L/C,D/P,T/T,Western Union,PAYPAL
3.Payment Terms: T/T in advance
4.MOQ: 1 pcs
5.FOB Price:US $1 - 1,000 / Piece
6.Port: Shanghai
7.Lead time: Within 5 working days after receipt payment.
8.Shipment: Express, Air, Sea
9.Supply capability: 200 Piece/Pieces per Week
10.Sample availability: Yes( not free)
11.Package information: carton package with Huawei original package
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