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Prestige 2602RL-D3A Support Notes
All contents copyright (c) 2007 ZyXEL Communications Corporation.
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Can I connect more than one phone on the phone port?
Yes, P2602RL – D3A supports REN (Ringer Equivalence Number), it can determine the number of devices
that is connected to the phone line. P2602RL – D3A can support up to three devices per telephone port.
Can I receive incoming PSTN call through P2602RL- D3A?
Yes, P2602RL has a line port for connecting a PSTN line. Thus enable you to receive incoming PSTN calls.
Can I make an outgoing PSTN call through P2602RL – D3A?
Yes, P2602RL – D3A 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 numbers. If P2602RL- D3A lost power it
will by pass to PSTN line to allow you to call out as you where on regular PSTN phone.
VoIP FAQ
What is Voice over IP?
Voice over IP is an emerging technology based on open standards of IEEE, fundamentally the Internet Protocol,
that allows voice data to travel across the Internet. There are many method to used this technology, the most
common and well known are SIP, and H.323.
How does Voice over IP work?
Basically VoIP is a technic to send voice information in digital form in discrete packets over digital network
rather than by using traditional circuit switch (PSTN). To do so we will need an analog to digital converter on
sender side to translate the voice (analog signal) to digital than transmit it, and on the receiver end it will also
need an analog to digital converter to covert the digital signal back to analog to the person being called can
heard the voice.
Why use VoIP?
Traditionally telephony carrier use circuit switching for carrying voice traffic. As circuit switching is designed
to carry voice and it does it very well. Than why use IP for voice? As broadband booms, and technology
evolve. People now want to communicate through various way not just voice such as email, instant
messaging, video and so on. Traditional telephony can not evolve as quickly as the demand and develop new
feature on circuit switch takes much time and money. IP is an already exist standard and many type of service