User`s manual

AudioCodes Mediant 800 MSBG Installation and Configuration Guide Page 36 of 47
Advanced Installation – External User Agents:
If you wish to have VoIP stations outside your network that connect back to
IC and place calls without using VPN there are several things you will need to
configure. Primarily you cannot use the Mediant 800 for your primary Data router.
You will instead need a Secondary router that will handle the HTTP(S) traffic
from the WAN Phones. See the diagram below:
For IC to function properly with a WAN
Phone & Switchover, all HTTP(S) traffic
will need to be routed through a separate
device than the M800. Ports 8088 and
8089 will need sent through your firewall
using port forwarding, static NATs, or a
separate method of your choosing.
The end result being that a WAN phone
can contact either server for its
configuration files, depending on which
server is up at the time, and that the
HTTP(S) traffic does not go through the
M800.
The reason for this is due to a limitation of
the Mediant 800. If a DNS record returns
more than one IP, the first IP returned is
the only IP Address used.
One other thing to note is that this
configuration disallows provisioning
managed phones by end users, and
rebooting the phones remotely. All
phones will need their MAC addresses
entered at time of creation.