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TVP-221H User’s Guide
55
Dial 22203 (22204) 1. Du Du tone is heard
2. VoIP call processing
Ring back tone is heard
1. GW A Line 1 LED “ON” Phone 203 is ringing
1. GW B Line 3 LED “ON” Receiver Picks up phone
203
VoIP Conversation VoIP Conversation
The above dialing process is the same for any calls made from GW A local PSTN to
remote phone numbers 203 & 204.
L
Case 1-3 Dial Plan samples show the possible analog phone / PBX /
PSTN integration / applications of the Gateway. Disconnect cadence
provided by your phone company for your PSTN line and disconnect
cadence provided by your PBX may require additional matching with the
gateway. This will require the assistance of your PBX supplier and / or
Systems Integrator. Please also see User’s Guide for additional
information.
5.6 VoIP in a Dynamic IP environment
The previous section dealt with the TVP-222H in and its configuration in a static
IP environment. The following section will address the issue of Dynamic IP and
the TVP-221H deployment in such an environment. This section we will shows
you how to connect two TVP-221H in a dynamic IP address environment and
configure PPPoE, DHCP, and DDNS clients.
5.7 PPPoE, DHCP, and DDNS clients:
Case 4: Gateway Prefix–Simplified Gateway Phone to Gateway Phone
In addition to fixed IP, the TVP-221H can be configured to use PPPoE or DHCP
clients. With PPPoE and DHCP, you will under most circumstances be assigned a
Dynamic IP. In order for other people and devices to locate you, they will need to be
pointed to your dynamic IP. Therefore, it is necessary that you register with a DDNS
(Note:
www.dyndns.org is currently the only service supported). Once you have
registered an account, and have configured the DDNS client in the TVP-221H, the
TVP-221H will automatically notify DynDNS when your Dynamic IP Address
changes. DynDNS will in turn, map your Dynamic IP to your registered Domain
Name. See Chapter 6, DDNS section for more information.