3: Using The Advanced Features Of Your Phone; Placing Calls Using The H.323 Protocol - Polycom WX 1500 User Manual

3: Using the Advanced Features of Your
Phone
This chapter shows you how to use the advanced features of your Polycom VVX 1500 C Business Media
Phone for Cisco Unified Communications Manager (SIP) Polycom VVX 1500 business media phone.

Placing Calls Using the H.323 Protocol

Note: H.323 Protocol is an Optional Feature
Handling calls that use the H.323 protocol is an optional feature that your system administrator
enables. Your system may not support it or have an H.323 license. For more information, contact
your system administrator.
If your phone supports the H.323 protocol, be aware of the following limitations:
Your system administrator can set up your phone so that it can handle calls that use either the SIP or
H.323 protocol, or both protocols. Your phone may be set up so that a line can handle one or both
protocols.
If your phone can handle calls using both protocols, you may be able to choose the protocol to use before
you tap the Dial or Send soft key, or before a call is automatically placed. You may also be able to
choose to allow your phone to automatically select the protocol to use.
If your phone is set up to handle both protocols, you may be able to choose a protocol before you place a
call using one of the following methods:
 Soft key method
Soft keys display to allow you to choose the protocol. Tap the Use SIP, Use H.323, or Use Auto
soft key one or more times to toggle between Use SIP (to place a SIP call), Use H.323 (to place an
H.323 call), or Use Auto (to allow your phone to automatically select the protocol to use). The
protocol you select displays in the title bar. Your phone will use the selected protocol for all
subsequent calls, unless you select a different protocol.
 Dialog box method
A dialog box displays to allow you to choose the protocol. Tap Use SIP (to place a SIP call) or Use
H.323 (to place an H.323 call).
For dual-protocol phones, the protocol displays next to all call IDs, including the call IDs for conference
call participants and calls on hold. The following figure shows a SIP call placed to Jack Jones.
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