Traditional narrowband support options
Legacy telecom services continue to be an important part of how service providers deliver voice and digital services to customers. Tellabs Broadband products provide ongoing support for legacy services while providing a path for transitioning to newer technologies.
Plain Old Telephone Service (POTS)
The cornerstone of many networks is POTS. The Tellabs 1000 MSA) provides POTS to residential and business subscribers in the access network and interface to the Public Switched Telephone Network (PSTN). The Tellabs 1000 MSAP can interface with all Class 5 switches and supports all three standard interface types deployed in North America: universal with GR-57, and integrated with GR-08 and GR-303. The Tellabs 1000 MSAP is also extremely scalable. A system can be deployed as a single shelf with one to 100 subscribers, or it can be up to 32 connected terminals in various topologies with up to eight shelves each, providing service for up to 2,000 subscribers.
GR-303 interfaces support
The primary benefits of the Tellabs 1000 GR-303 interface include reduced costs for equipment, maintenance, and inventory, and no need for L-POTS, L-PAY, L-UVG or L-ISDN plug-in cards. There are reduced costs through efficient use of switch ports, increased revenue through greater subscriber concentration and dynamic time slot interchange and higher quality of service because of the digital interface, including increased modem speeds. Tellabs GR-303 solution delivers the following capabilities such as up to three interface groups per Tellabs 1000 MSAP system, from 2 to 28 DS-1s per interface group, up to 28 total DS-1s per Tellabs 1000 MSAP system, up to 2,048 CRVs per interface group; up to 2,048 total CRVs per Tellabs 1000 system at a 3:1 concentration and up to 672 subscribers off-hook simultaneously. There is support for up to 32 remote terminals per LET or master terminal and support for 4:1 ISDN D-channel multiplexing. Excellent scalability is achieved with the Tellabs 1000 MSAP supporting up to 2,000 off-hook lines of POTS services without consuming narrowband DS-0s on the terminal’s primary shelf.
Analog special services continue to be deployed. The Tellabs 1000 MSAP is the only, DLC available that can provide a full range of services. The following list provides examples of the analog special services; Direct Inward Dial Service (DID), Direct Outward Dial Service (DOD), 2- or 4-wire E&M Service usually used in the central office Equalized Transmission Only (ETO), Foreign Exchange service applications (FXO/FXS), Voice private line services (Leased line) — Analog, non-switched, 2- or 4-wire service, Off-premises extension — Analog 2-wire, Off-premises PBX — Analog 2-wire, PBX — Local PBX trunk service and Private Line Automatic Ringdown “hotline” service (PLAR).