PSTN Lifeline FAQ


General FAQ

  1. What is p2002 and what is the different between p2002 and p2002L?
  2. What does Lifeline mean?
  3. Do I need Lifeline?
  4. Can I connect more than 1 phone on the phone port?
  5. Can I receive incoming PSTN call through p2002L?
  6. Can I make an outgoing PSTN call through p2002L?

1. What is p2002 and what is the difference between p2002 and p2002L?

p2002 is a SIP based VoIP analog telephone adapter.  It allows yo9u to send voice signals over the Internet or VoIP of IP via SIP protocol which is an internationally recongnized standard for VoIP Technology. 

The main difference between p2002 and p2002L is in Lifeline support.  p2002L supports PSTN lifeline function.  PSTN lifelines allows you to have VoIP phone service and PSTN phone service at the same time.

2. What does Lifeline mean?

Lifeline means the ability to read specified emergency rescue authority (Police, Fire department etc.) as you can do on regular phone line in case emergency even if p2002L loses power.

3. Do I need Lifeline?

Not everyone needs lifeline support on VoIP telephone adapter.  It depends on the government authority or ITSP provider.  As in some countries lifeline support are mandatory by law. 

4. Can I connect more than 1 phone on the phone port?

 Yes, p2002L supports REN (Ringer Equivalence Number), it can determine the number of devices that is connected to the phone line.  p2002 can support up to three devices per telephone port.

5. Can I receive incoming PSTN call through p2002L?

Yes, p2002L has a line port for connecting a PSTN line.  Thus enable you to receive incoming PSTN calls. 

6. Can I make an outgoing PSTN call through p2002L?

Yes, p2002L allows you to make outgoing PSTN call via a prefix number that is defined in the configurable lifeline table.  It allows you to store up to 9 pre-stored number.  If p2002 lost power it will by pass to PSTN line to allow you to call out as you where on regular PSTN phone.


All contents copyright © 2004 ZyXEL Communications Corporation.