BLC 6000 Blades
BLC 6660-01 Emergency Stand Alone
The 6660-01 Emergency Stand Alone Blade and BLC 6660-01 Assembly provide for local dialing to Emergency Service facilities and calls between local POTS subscribers during network outages. In ESA enabled networks, a loss of connectivity to the local digital switch does not prevent local calling for POTS subscribers. All voice traffic in a BLC 6000 system is carried as VoIP with MGCP signaling.
- Emergency Services Dialing During Network Outages
- Route E911 Calls to Local Numbers During Outages
- Local POTS Dialing During Switch and/or Network Outages
- DS1 Services
- Replaces Remote Switches in Many Environments
- Supports Remote Switching for VoIP Softswitches
- May Qualify as a Switch for Settlements Under NECA Provisions
The Emergency Stand Alone feature takes advantage of the ability of POTS endpoints to communicate directly to one another under the control of directory services managed ESA blades. ESA blades may be deployed in remote CO facilities. They can manage all local calls to any emergency calling facility within the local calling area and can manage any local calls between residences and businesses within the local calling area.
ESA operation is controlled by a subscriber database for managing calls when the network is partitioned and/or separated from the local digital switch (Class 5 switch or softswitch, for example). The subscriber database enables the Telco to configure a dialing plan for the subscribers under control of the ESA system. These dial plans may range from very simple to more complicated numbering schemes, as required by the regional dialing requirements. Emergency services may be enabled using global hunt groups for emergency number dialing. Global hunt groups require minimal configuration in the subscriber database. Support for multiple local hunt groups allows one ESA system to manage several regions with unique emergency services per region.
Other ESA features available during network outages include limited call features such as Caller ID, Call Waiting and 3 Way Calling. The Telco provider may also configure verbal announcements to give subscribers more informative messages for commonly dialed numbers and prefixes that are not available during a network outage.
In addition to the directory services features, the ESA blade provides Gigabit Ethernet transport capability for the BLC 6000 Broadband Loop Carrier system.
The 6660-01 Blade is a high performance, fully capable Ethernet switch with 10 Gigabit Ethernet ports: 4 optical and 6 copper. Each blade also has 8 DS1 ports.
The 6660-01 supports Transparent Circuit Emulation service by transporting the whole DS1 circuit through the network. This can either be synchronized to the network timing or operate with independent clocking. The 6660-01 can also cross-connect and transport individual DS0 circuits over the BLC 6000 IP network. In this mode, a DS0 circuit from multiple customers can be assigned to a DS1 connection headed either to the local Class 5 switch, to the digital access cross-connect private line network or to support special services converters such as Enterprise Business (Nortel P-phone) Service.
The 6660-01 Blade can be deployed standalone as the BLC 6660-01 Assembly, or it can be used in high density deployments with other BLC 6000 Blades in the BLC 6012 high capacity chassis. The single blade BLC 6660-01 Assembly can be stacked with additional units to add capacity and hardware redundancy, and can be stacked with other BLC 6000 Assemblies for full system capabilities.
Direct Network Connection to Next Generation Softswitches
The 6660-01 Blade and BLC 6660-01 Assembly can be used in the central office for seamless network connection to softswitch platforms. Any of the Ethernet ports can be used for this purpose. BLC 6000 networks ease the circuit-to-packet transition and yield additional cost savings in the access network by eliminating the Class 5 interfaces on the loop carrier side. The 6660-01 provides the protected feeder network transport required to sustain voice calls in the event of single network faults.