Polycom HDX Systems - Manual (Page 10)

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6
Types of Calls You Can Make
Depending on your system configuration, you may be able to make calls using
ISDN, IP, SIP, or V.35.
The following table lists some possible call combinations.
From… You can call… By dialing…
ISDN Phone number ISDN
IP Phone number of the far-site gateway and
the extension (E.164 address) of the far
site.
Enter the extension after the gateway
number or wait until the gateway prompts
you for the extension.
Networked and
Public Sites
Alias, E.164 address, DNS name, or IP
address.
Protected and
Private Sites
Typically, the far site’s gateway number
then the number of the far-site system.
Consult with the far site about the best
method for placing the call.
LAN
ISDN Access code of the near-site gateway, the
selected speed code, and the ISDN number
of the far site.
When you call an IP system through a gateway that requires an extension (E.164
address), enter the extension in the dialing field whenever possible. Check with your
network administrator for the extension delimiter you will need to enter into the dialing
field. For example, some networks use ## to separate the extension from the IP
address.
When you include the extension, you will be given the option of saving both the number
and the extension in the directory when the call ends. If you enter the extension after
the gateway connects, then you can save only the gateway number when the call ends.