The Linksys PAP2T-NA analogue telephone adapter (ATA) enables high-quality feature-rich telephone service through your cable or DSL Internet connection. Just plug it into your Router or Gateway and use the two standard telephone jacks to connect your existing phones or alarm system. Each phone jack operates independently, with separate phone service and numbers - like having two phone lines. You get clear telephone reception and reliable alarm signaling from a single device.
Overview of Linksys PAP2T
Using a PAP2T with the IP to POTS Alarm Monitoring Solution
The PAP2T is the most popular adapter used by subscribers to the IP to POTS Alarm Monitoring Solution. This is probably due to the fact that it is the lowest cost model in the Linksys ATA range.
PAP2T as Alarm Dialer
UL certification is proof of the safe, high quality build of Linksys VoIP adapters like the SPA3102 & PAP2T
The sub US$50 price tag is a bonus for Alarm Dealers & their Customers.
VoIP Features
With Internet telephony, along with low domestic and international phone rates, an impressive array of special phone features are available. Choose your preferred free local dialing US area code, regardless of where you live. Or add a virtual phone number in any area code, forwarded to your Internet phone. You can even add a toll-free number. The Linksys Phone Adapter is compatible with these and all of the other special telephone features that are available from your telephone service provider, such as Caller ID, Call Waiting, Voicemail, Call Forwarding, Distinctive Ring, etc. When used on seperate lines - none of the above VoIP features are affected by the alarm monitoring settings.
Firmware
For a while, people were able to unlock the "locked" devices offered by providers such as Vonage, however since mid November 2005, a firmware update has been released which "corrects" some of loopholes being used to unlock the devices. In one particular instance, Vonage have actually withdrawn some of their PAP2's from retailers such as Comet in order to replace them with units containing the newer firmware, so that there is little chance of them being unlocked. As of 2007, all Vonage PAP2 devices can be unlocked. However, PAP2s, including PAP2-NAs locked to other providers generally cannot be unlocked without either that provider's encryption key or admin password.
PAP2 or SPA3102 ?
The PAP2 has two lines that both work over the Internet - but not telco lines. The SPA3102 has a single VoIP line and a single Telco line. For this reason, the PAP2T is used where alarm signaling is single path (IP only) and the SPA3102 is used where alarm signalling is dual path (IP + cellular backup).