checkpoint vpn client falls under "unsupported"
clients
follow workaround at:
http://www.cisco.com/univercd/cc/td/doc/product/voice/c_ipphon/english/ipc/a
dmin/cadcfg.htm#wp1067624
Resolving Audio IP Address Auto-Detection Problems
If the PC on which Cisco IP Communicator is running uses an unsupported software VPN
client, audio IP address auto-detection will not work. The resulting symptom is one-way
audio.
In this case, you need to complete the following tasks:
?First, run the Cisco IP Communicator Administration Tool and select the option to enable
the HTTP access. Doing this creates a getIP.asp reflector web page. (See the "Running the
Cisco IP Communicator Administration Tool" section on page 2-14 for help.)
?Next, specify the location of the getIP.asp web page in the Cisco CallManager
Administration (Device > Phones > Phone Configuration > Product Specific
Configuration > IP Address Auto-detection URL).
By default, getIP.asp is stored here:
http:///communicatorloads/communicator/getIP.asp
If you want to change the location of the getIP.asp reflector web page, copy the getIP.asp
from the default location, place it in a new location, and enter the new URL in the Cisco
CallManager Administration (see the second bullet above). If you choose to change the
location, be aware that getIP.asp must be placed on a Microsoft IIIS Web server to work
properly for auto-detection purposes.
Tip Audio IP address settings can be viewed and configured from the Cisco IP Communicator
interface by choosing: Right-click > Preferences > Audio > Network... > Audio
IP Address.
