SX20

[Todd Kelly]

I was given a SX20 out of the box. Everything looks to be configured correctly expept that whenever I try to make an IP call it tells me this:

I thought I could make a straight IP call without having to configure H323. Any help is greatly appreciated.

H323 Not registered on default call protocol

[Patrick Sparkman · Accepted solution]

You need to change the following in the SX20 configuration to make point-to-point IP calls without a call control server such as CUCM or VCS.

Configuration H323 Profile 1 CallSetup Mode: Direct

[Todd Kelly]

Do I need any other type of device besides this SX20?

[Patrick Sparkman]

You can use the SX20 as a standalone endpoint without any other hardware.  If you search the forums for "sx20 standalone", you'll see several discussions with instructions and helpful tips on how to set it up more.