[cisco-voip] IP Communicator

[Wes Sisk]

there are really only 2 challenges to this:

1. IPC  has to know which local address to use when it sends  
openreceivechannelack to CM indicating what IP:port  IPC would like  
to receive audio on (sorry for ending sentence with preposition).   
This is achieved either by manual config or using a 'reflector page'  
- basically a web page the client can access on the CM server that  
displays the source IP address of the http get request.  An example  
one is included with the old IP Softphone Admin Kit
http://www.cisco.com/cgi-bin/tablebuild.pl/ip-softphone
IPC specific discussion:
http://www.cisco.com/en/US/customer/products/sw/voicesw/ps5475/ 
products_administration_guide_chapter09186a00805f085a.html#wp1067624

2. if the VPN software has a builtin stateful firewall it has to  
allow the IPC to open and receive traffic on the TCP ports for  
signaling and UDP ports for media.  I believe IPC allows you to fix  
the port number to be used for RTP traffic in the latest versions.
http://www.cisco.com/en/US/customer/products/sw/voicesw/ps5475/ 
products_administration_guide_chapter09186a00805f085a.html#wp1053356

/Wes

On Mar 30, 2006, at 5:12 PM, Craig M Staffin wrote:


Has anyone gotten IP Communicator to work through a Checkpoint VPN/ 
Firewall solution??

Craig

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