asterisk users - Jan 2007 - Need help with if command

Please help,

 

What am I doing wrong?

 

If the caller id name is empty then I want to set it to Unknown.

 

Set(CALLERID(name)=If($["${CALLERID(name)}" = ""]?Unknown)

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Do like this
GotoIf($[${LEN(${CALLERID(name)})}=0]?50)

On 1/19/07, Klaverstyn, David C <David.Klaverstyn@intergraph.com>
wrote:
>
>
>
>
> Please help,
>
>
>
> What am I doing wrong?
>
>
>
> If the caller id name is empty then I want to set it to Unknown.
>
>
>
> Set(CALLERID(name)=If($["${CALLERID(name)}" =
""]?Unknown)
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