Analog Fast Track Guide 3. Configuring the MediaPack
Version 4.8 21 March 2006
¾ To configure basic H.323 parameters, take these 7 steps:
1. If the MediaPack is connected to a router with NAT enabled, perform the following
procedure. If it isnāt, leave the āNAT IP Addressā field undefined.
¾ Determine the āpublicā IP address assigned to the router (by using, for instance, router
Web management). Enter this public IP address in the āNAT IP Addressā field.
¾ Enable the DMZ configuration on the residential router for the LAN port where the
MediaPack gateway is connected. This enables unknown packets to be routed to the
DMZ port.
2. When working with a Gatekeeper, set āWorking with Gatekeeperā field, under āH.323
Parametersā, to āYesā and enter the IP address of the primary Gatekeeper in the field
āGatekeeper IP Addressā. When no Gatekeeper is used, the internal routing table is used to
route the calls.
3. Leave parameter āEnable Annex D/T.38 FAX Relayā at its default unless your technical
requirements differ.
4. Select the coder (i.e., vocoder) that best suits your VoIP system requirements. The default
coder is: G.723.1 30 msec. To program the entire list of coders you want the MediaPack to
use, refer to the MediaPack Userās Manual.
5. Map outgoing calls to IP addresses (when Gatekeeper isnāt used) by completing these steps:
¾ Click the arrow button next to the āTel to IP Routing Tableā label; the āTel to IP Routingā
screen opens.
Any telephone number whose destination number matches the prefix defined in the
āDestination Phone Prefixā field and whose source number matches the prefix defined in
the adjacent āSource Phone Prefixā field, is sent to the IP address entered in the āIP
Addressā field.
¾ Click the Submit button; the āTel to IP Routingā table is automatically updated.
¾ Click Quick Setup; youāre returned to the āQuick Setupā screen.
For more information on the āTel to IP Routingā table refer to the MediaPack H.323 Userās
Manual.
6. Allocate MediaPack endpoints (analog lines) and their corresponding phone numbers to
incoming IP calls by completing these steps:
¾ Click the arrow button next to the āEndpoint Phone Numberā label; the āEndpoint Phone
Numbersā screen opens.
¾ Enter the number of a channel, starting with 1, (or a group of channels), under the
āChannel(s)ā column (for example 1-4 for the first 4 endpoints).
¾ Assign each channel a phone number (for a group of channels, define the first number
in an ordered sequence). For an example of connecting two MP-118 devices, refer to
Section 3.4.4 on page 24.
¾ Click the Submit button; the āEndpoint Phone Numberā table is automatically updated.
¾ Click Quick Setup; youāre returned to the āQuick Setupā screen.
7. Click the Reset button and click OK in the prompt; the MediaPack applies the changes and
restarts. This takes approximately 2 minutes to complete. When the MediaPack has finished
restarting, the Power and Ready LEDs on the front panel are lit green.
Note: H.323 users should continue with Section 3.4.4, "Example of Connecting Two
MP-118 Devices" on page 24.