SQL Server "TRIM" Command

I'm working with Sql Server , and I need to trim in a result of a query.

I did as follows:

select TRIM(NUMERO)
from ENDERECO

In% w / w the command is "recognized", it is in the coloration of a valid command, but returned the following error:

  

'TRIM' is not a recognized built-in function name.

I was able to resolve with the following command:

select RTRIM(LTRIM(NUMERO))
from ENDERECO

But I needed to use two functions that I think could be solved with only one function, and the command Sql Server Management , is there any way to "install" it, because trim