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IP-POTS Installation

Introduction 

Purpose

This Guide explains how to utilize the Tellabs T1000 IP-POTS card to implement SIP-based analog POTS.  This card allows a seamless transition from TDM-based voice to SIP-based POTs.

Document Number 

ENG-12919

Applies To 

This Guide applies to the installation of the T1000 IP POTs card.

Document Revisions

  Revision    Date   Notes
Revision A April 2025 Document describes the initial installation of the Tellabs® T1000 IP POTs card
     

Definitions

POTS - Plain Old Telephone Service, traditional land line service served over copper to customers homes.

IP-POTS -  A Tellabs voice card providing Analog voice conversion of 6 voice lines directly to SIP-based voice over IP.  This is transparent to existing analog customers.

LET - Local Exchange Terminal.  The Tellabs 1000 can be co-located within the CO or Central Office. In those use cases, it would use a LET terminal to deploy the services.  Up to 8 shelves can be deployed within the LET, one primary shelf and up to 7 expansion shelves.  The LET is also used to distribute TDM bandwidth to RST Shelves.  Please note that if IP-POTS is deployed in the CO, an RPSU is needed to provide ringing.  Traffic from up to 32 RSTs can home into a single LET shelf.

NMA - Network Maintenance and Alarms.  A TL1 based system for reporting alarms from Network elements into Operators trouble ticketing systems.  Allows for proper surveillance and reporting of network element faults.

OPS/INE - Operations Provisioning System / Intelligent Network Element. This is the Telcordia Operation Support System that does the configuration of network elements.

RST - Remote Subscriber Terminal.  These are Tellabs 1000 shelves located in cabinets out in the field and home off of a LET.  Typically, if voice is deployed at a remote location, it will use an RST and will home off of a LET within the CO.  Up to 32 RSTs can be homed off a single LET.

RTP - Real Time Protocol, a protocol used for sending packetized voice between two endpoints.

SRTP - Secure Real Time Protocol, a protocol for sending encrypted packetized voice between two endpoints.

SBC - Session Border Controller, device that typically sits at the border between internal and external networks and provides a host of security and other functions for the network border.  SIP registration is often to an SBC or SIP proxy.

SIP - Session Initiation Protocol, the control protocol used for setting up and negotiating SIP based calls.

Terminal - One LET or RST with one primary shelf and up to 7 expansion shelves.  

TIRKS - Trunk Integrated Record Keeping System.  The system charged with keeping track of all of the facilities and trunks within the field.