AT&T U-verse Voice, like other Voice over Internet Protocol ("Voice over IP" or "VoIP") services, requires electrical power at your home to operate. Depending on your service address, your AT&T U-verse Voice service will include either a Residential Gateway Battery Backup Unit ("BBU") or an iNID Power Supply Unit ("iPSU").

Residential Gateway with Battery Backup

The RESIDENTIAL GATEWAY (RG) is located inside your house and uses electrical power to deliver all your U-verse services. The battery backup for the RG must be installed inside your house near the RG, and be easily accessible. The RG battery backup supplies power for your AT&T U-verse Voice service; it does not supply power for cordless phones (and it does not supply power for your network interface device or ONT, typically located on the outside of your home, which may also require battery backup power for your AT&T U-verse Voice service to function).

If you have AT&T U-verse services (voice, high-speed Internet, and/or TV), you must also have battery backup power for the Residential Gateway for your AT&T U-verse services to function during a power outage. AT&T will not provide support for, or be responsible for, ongoing maintenance or management of equipment, including the initial RG battery backup unit or the initial ONT backup battery provided to AT&T U-verse Voice customers. If you have Internet Service, you must provide battery backup power for your computer, if you would like to have access to the Internet during a power outage. For example, your computer could be plugged into an Uninterruptible Power Source (UPS), available at certain home and electronics stores.

During a power outage, to conserve battery power for necessary AT&T U-verse Voice calls, DO NOT use any U-verse service other than AT&T U-verse Voice during the power outage. You should avoid making unnecessary calls and not use AT&T Internet service. AT&T recommends that you use a corded phone with AT&T U-verse Voice during a power outage. (Cordless phones require electrical power to work and may not be equipped with backup batteries). AT&T also recommends that you always have an alternative means of accessing 911 during a power outage, such as a cellular phone.

Portable generators with 120-volt outlets and extension cords will power the RG Battery Backup in the event of extended power outages. See manufacturer details for operating and safety procedures when using a portable generator. Other 120-volt PSU backup solutions may be available at certain home and electronics stores (e.g., Uninterruptible Power Sources (UPSs) and Duracell® Standby Power Plugs).

Residential Gateway (RG) and Battery Backup Unit (BBU)

Backup Battery for RG

AT&T provides an initial RG battery backup unit, with an initial backup battery, for purchasers of AT&T U-verse Voice service. When equipped with a new, fully charged backup battery, it will provide approximately four hours of battery backup power. It takes approximately 18 hours to charge an initial backup battery after U-verse Voice is installed and/or after a replacement battery is installed at normal indoor temperatures. For battery replacement and recycling information, please call Belkin at 866-539-5791, or visit their website at www.belkin.com/gatewaybattery.

Information regarding where replacement batteries can be purchased are listed below. Locations where batteries are available are subject to change.

Consumer Batteries are commercially widely available at retail locations such as:

• Belkin website 866-539-5791 (AT&T recommended provider)
  www.belkin.com/gatewaybattery
• China Storage Battery
• Yuasa
• Radio Shack
• Local hardware stores
• Battery Plus
• Sears

How to determine when to replace your RG battery

The yellow LED on the front panel will flash and the audible alarm will sound every second which indicates a low battery. This alarm will continue until the unit performs a forced shutdown when the battery is depleted. The red LED on the front panel will flash and the audible alarm will sound every two seconds when the battery needs replacing. This alarm warns that the battery has reached the end of its useful life and the user must replace the battery as soon as possible to ensure proper operation of the RG battery backup.

How do I replace the RG battery?

Remove the battery door on the rear of the device. Disconnect the RG Battery Backup from power and any connected devices. Remove the battery from enclosure; remove the wire connections from the battery. Connect the new battery (black-to-black, red-to-red); place the battery into the enclosure. Securely reconnect the battery door.

Battery (@ 77 degrees F)

Type/Rating 12V/7.2Ah

F2 Faston connectors and a size not to exceed 5.94" Length x 2.56" Depth x 3.7" Height

Typical Battery Recharge Time 18 hours for a new and fully depleted battery at normal indoor temperature

Typical Backup Time 4 hours—with a new, fully charged battery.

CSB- or YUASA-branded battery or other battery recommended or supplied by Belkin, with one corded single-line, touchtone phone connected to the AT&T U-verse® Residential Gateway directly or through your in-home wiring, and with no other equipment and no service other than AT&T U-verse® Voice service drawing power from the RG Battery Backup. Actual results will vary, depending, among other things, on battery age, usage patterns, and environmental conditions.

Additional Limitations

Please note that AT&T U-verse Voice will work only in your home. You will not be able to make any calls, including 911 calls, from any other location, even if you move the Residential Gateway (RG) or an external Telephone Adapter (TA) to the new location.

For more information see the owner's manual: www.belkin.com/gatewaybattery

iNID with Battery Backup

INTELLIGENT NETWORK INTERFACE DEVICE (iNID) includes three components: a unit typically located on the outside of your premises or in your garage where AT&T's network terminates (the outside unit); a home networking hub which provides wireless networking capability and is located inside your premises (the inside unit); and, a power supply unit typically located in a sheltered area either inside your premises or in an attached structure – garage, closet or basement (iPSU). The iPSU includes a backup battery and usually will be located near where power comes into your home. The iPSU must be located within 100 feet of where AT&T's network terminates. If the iPSU is located in an area that you do not use regularly, you should check the status of the iPSU periodically to ensure that you receive any visual or audible warnings regarding the condition of the iPSU and battery backup. Portable generators with 120-volt outlets and extension cords will power the iPSU in the event of extended power outages. See manufacturer details for operating and safety procedures when using a portable generator. Other 120-volt PSU backup solutions may be available at certain home and electronics stores (e.g., Uninterruptible Power Sources (UPSs) and Duracell® Standby Power Plugs).

Your AT&T U-verse Voice service iPSU requires a backup battery to maintain your AT&T U-verse Voice service in the event of a short disruption to your electric power. During a power outage, to conserve battery power for necessary AT&T U-verse Voice calls, DO NOT use any U-verse service other than AT&T U-verse Voice during the power outage. You should avoid making unnecessary calls and not use AT&T Internet service. AT&T recommends that you use a corded phone with AT&T U-verse Voice during a power outage. If you have other AT&T U-verse services (high speed Internet, and/or TV) you must provide battery backup power for your inside unit for your AT&T U-verse services to function during a power outage, as well as power for your terminal devices. If you have Internet Service, you must provide battery backup power for your computer if you would like to have access to the Internet during a power outage. For example, your computer could be plugged into an Uninterruptible Power Source (UPS), available at certain home and electronics stores.

iNID Power Supply Unit (iPSU)

 
Figure 1

Backup Battery for iNID Power Supply Unit (iPSU)

AT&T provides an initial iNID Power Supply battery backup unit for the first purchaser of AT&T U-verse Voice service. All subsequent backup battery replacements are the responsibility of the customer at the premises. (If you are not the first purchaser of AT&T U-verse Voice service, you will not have an initial backup battery from AT&T, therefore, you should check the iNID Power Supply for the presence and status of a backup battery and place/replace if necessary).

For battery replacement and recycling information and to purchase replacement batteries, please call EnerSys at 1-866-327-5755 or visit the website www.fibersafebattery.com.

• The iNID internal battery voltage is 12 VDC.
• Incorrect or substitute battery connection replacement creates a risk of explosion.
• The iNID battery is within the intelligent Power Supply Unit (iPSU). (Figure 1)
• The iPSU contains a small battery. It is a FiberSafe 12 VDC 12 Ah Sealed Valve Regulated Lead Acid (VRLA) battery. The used battery must be properly recycled.
• The iPSU battery is intended for installation and operation in a controlled environment i.e., inside the garage area free of conductive contaminates.
• No user-serviceable parts exist inside the iNID. Refer any repair issues only to qualified technicians.

Information regarding where replacement batteries can be purchased are listed below. Locations where batteries are available are subject to change.

Replacement Battery Model Number:

EnerSys: FiberSafe12

Consumer batteries are only available for purchase from EnerSys at 1-866-327-5755 or www.fibersafebattery.com.

How to determine when to replace your iPSU battery

When the battery needs to be replaced, a chirp sounds intermittently unless you press the button to silence it for 12 hours. The chirp resumes after 12 hours if the battery is not replaced.

Flashing red indicates that the battery needs to be replaced.

Solid green indicates that the batter is installed and functioning properly.

Off indicates that no battery is installed.

Note: The BATTERY indicator works properly only when the iPSU is connected to and communicates with the outside unit.

How do I replace the iPSU battery?

Use a Phillips screwdriver to unfasten two screws (one on each side) securing the power supply battery cover. Press down on the tension springs and pull to disconnect the battery cable connector from the battery cable. Release the safety strap securing the battery. Insert the new battery gently into the housing. Connect the battery cable connector to the battery cable. Secure the battery with the safety strap. Replace the housing cover and fasten the cover with the two screws.

Battery (@ 77 degrees F)

Type/Rating 12V/12Ah

Typical Battery Recharge Time <24 hours to 90%

Typical Backup Time approximately 4 hours – with a new, fully charged battery.

Actual results will vary, depending, among other things, on battery age, usage patterns, and environmental conditions.

For more information see the owner's manual: www.fibersafebattery.com