Appendix C Ip Megaco Station Enhancements; Introduction; Iad(8)-U10 Etu And Ith Ip Phone On The Same Network - NEC Electra Elite IPK Installation And Maintenance Manual

A p p e n d i x C
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S 1 I
ECTION NTRODUCTION
The IAD (8)-U10 with Megaco Station Package supports some network topologies
where the card is in one network address while the IP phone is in another network
address. This situation occurs when there is a router with NAT or port-forwarding
Firewall features that lies between the phones and the IAD (8)-U10 ETU.
Some networks layouts are supported, but some are not. It is important to
understand the details of the network layout and compare them to the examples in
this document. Most notably, if the card is behind one NAT and the phone is behind
another, there is no way to make them connect.
It is also important to configure the phone and card properly. Find the example that
matches your network and follow the step-by-step instructions for configuring the
devices.
S 2 IAD(8)-U10 ETU
ECTION
If the IAD card and the IP Phone are on the same public or private network, you can
configure them to communicate over a WAN. Refer to the following example.
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Hardware, Installation and Maintenance Manual
IP Megaco Station Enhancements
ITH IP P
AND
S
HONE ON THE AME
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ETWORK
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