Operation Manual

Polycom VVX Business Media Phones User Guide
Polycom, Inc. 55
Redial a Number
Your phone automatically keeps a record of all the calls placed on your phone. You can recall the last contact
you call using the Redial icon or soft key.
To redial a number:
» Do one of the following:
 Select Redial on the Home screen.
 Press the Redial soft key.
Use H.323 Protocol to Place Audio Calls
You can use H.323 Protocol to place calls on VVX 500/501, 600/601, and 1500 phones. Your system
administrator can set up your phone to handle calls that use the SIP protocol, the H.323 protocol, or both.
Your system administrator can also set up your phone so that a line can handle one or both protocols.
Contact your system administrator to find out if calling with the H.323 protocol is enabled on your phone.
When your phone supports the H.323 protocol, the following limitations apply:
● You cannot forward or transfer H.323 calls.
● You cannot set up forwarding for lines that use the H.323 protocol only.
● You cannot set up shared lines on lines that use the H.323 protocol.
● You cannot place a call by just an H.323 name. You must use URL dialing using the following format:
<H.323 name>@<server name> .
Your system administrator can set up your phone so you can choose the protocol you want to use before
placing a call.
To place a call using H.323 protocol:
1 Select New Call.
2 In the Dialer, tap Use H.323 or URL to place an H.323 call.
H.323 is displayed in the number field. Your phone uses the H.323 protocol for all subsequent calls
until you select a different protocol.
3 Enter your contact’s H.323 URL name. For example, VVX1500@100.100.100.100.
For dual-protocol phones, the protocol is displayed next to all call IDs, including the call IDs for conference
call participants and calls on hold.
Select a Protocol for Placing Calls Automatically
Your system administrator can set up your phone so that you can enable it to automatically select the
protocol to use for all calls.
To automatically select a protocol for placing calls:
1 Tap New Call.
2 In the Dialer, tap Use Auto to enable your phone to automatically select the protocol to use.
Your phone uses the selected protocol for all subsequent calls until you select a different protocol.