Linksys SPA2102


 * Product page • Datasheet


 * On DSLReports forums (PCB images)
 * The Linksys SPA2102 is gateway router/analog telephony adapter (commonly referred to
 * as ATA) with two FXS ports, which allows for the connection of two “normal” telephones to
 * a VoIP provider using the Session Initiation Protocol (SIP) protocol. The product is based
 * on the SPA-2100, made by Sipura Technology, which was acquired by Cisco in 2005.


 * The ethernet chip is likely a custom version made for Sipura. The board picture
 * (see bellow) shows a Micrel SPN801024 with lot number GFK7344.1M01.


 * Another picture (found here) shows a Micrel SPNZ801030 whit lot number GFS7976.1.
 * Both lot numbers are close to GFK7343.1MEG and GFS7975.1MED found in the Micrel
 * MTBF report (see links & screenshot), which identify a KS8842 chip.

Components

 * MX29LV160DTB Datasheet
 * MX29LV160AT Datasheet
 * IC42S16400 Datasheet • ISSI (Integrated Silicon Solution, Inc.)
 * Si3215 Datasheet
 * Si321x Evaluation Board Documentation
 * Micrel Product Overview (Switches)
 * Micrel MTBF Report / Lot Number list
 * KS8842M Product Brief
 * KS8842M Datasheet (mirror)

Links

 * Quick Start Guide
 * Aministration guide
 * User Guide (babyTEL)
 * Linksys SPA provisioning Guide
 * Release notes v5.2.10
 * Release notes v5.2.12
 * Release notes v5.2.13
 * Firmware v5.2.3 - v5.2.13
 * Profile Compiler (SPC) v5.2.3 - v5.2.13 Linux/Win32

Sipura Technology Inc.

 * http://www.sipura.com
 * Sipura - VoIP Hardware Solutions

Sipura was purchased by Linksys and the Sipura product line has been rebranded to Linksys.
 * Linksys Voice products (what was Sipura) are now going to be rebranded as Cisco.

Makers of some of the most popular SIP ATAs available:
 * http://www.voip-info.org/wiki/view/Sipura
 * Sipura SPA1000 - This ATA has now been superceded by the Sipura SPA-1001
 * 1x FXS port


 * Sipura SPA1001
 * 1x FXS port, 2x SIP lines


 * Sipura SPA2000 - This ATA has now been superceded by the Sipura SPA-2002 which is almost identical
 * 2x FXS ports, VoIP


 * Sipura SPA2100 Router/ATA
 * Router, 2x FXS ports, T.38 FAX support, QoS support


 * Sipura SPA3000 - This ATA is discontinued and has been superceded by the Liksys SPA3102
 * 1x FXS port, 1x FXO port, VoIP, SPA-841 VoIP phone, 2x to 4x line appearances, Speakerphone


 * SPA-941 - VoIP phone
 * 2-4x line appearances, Speakerphone, Wireless networking option

On VOXilla forums
Here's some info on the different Linksys adapters:
 * PAP2 - has been discontinued and is replaced with the PAP2T.
 * PAP2T - the latest model 2 FXS adapter from Linksys.
 * SPA1001 - has been discontinued and is replaced with the PAP2T.
 * SPA2102 - the latest model 2 FXS, router, adapter from Linksys.
 * SPA3102 - the latest model 1 FXO, 1 FXS, router, adapter from Linksys.
 * -NA or -EU means that the device is not associated with a particular VoIP provider (unlocked).

Devices without -NA or -EU usually have another -XX designation and are locked to a specific VoIP Provider.
 * If you are looking to purchase used equipment, make sure it is a -NA or -EU model.

Other models are not truely "unlocked" and will not be supported by Linksys or other prodivers.

On Wikipedia

 * SPA2000: Basic phone adapter that allows two plain old telephone service (POTS) phones or fax machines
 * to be connected to an Ethernet network in order to make and receive telephone calls or faxes.


 * SPA2100: Similar to the SPA2000 with the addition of an Ethernet router. Functions of the built-in router include QoS.
 * SPA3000: The SPA3000 has one phone adapter port (FXS), one FXO port and can be used for POTS backup for strictly VoIP systems.
 * SPA3102: Similar to the SPA3000, it includes a single LAN output that can be used to connect to a computer.
 * This is handy if the user only has an ISP modem and no router. The SPA3102 connects to the LAN socket on the ISP modem.
 * The computer, which is traditionally connected to the modem, now connects directly to the LAN connection on the SPA3102.
 * The SPA3102, effectively, is an ATA and single output router in one box.


 * SPA9000: An IP PBX system that allows an auto-attendant to be configured, hunt groups, multiple IP phone extensions, and
 * POTS connectors. The SPA9000 also has basic router functions, port forwarding, quality of service, and DTMF functionality.


 * SPA901: A basic IP phone with only one line.
 * SPA921: A single-line phone with LCD screen.
 * SPA922: A single-line phone with LCD screen, but adds a single port built in switch.
 * SPA941: The flagship of the SPA phones, it incorporates a 4-line IP phone and an LCD.
 * SPA942: Similar to the 941 aside from the additions of power over Ethernet ability, back-lit screen, and a single port built-in switch.
 * SPA962: Similar in appearance and functionality to the 941/942, it features a six line, 2-inch color screen