====== Grandstream ====== 
===== Grandstream GXW4224V2 ===== 

For this Gateway or the 48 port gateway port numbers are requred after the IP address. 

Therefore the MWI address would be phone extension (or DID) number followed by the gateways IP address and the jacks FXS port number. 

The Grandstream doesn't seem to use the extension number but it should match that of the mailbox and it needs to be a valid SIP address otherwise the DV2000 will reject it. 

GXW4224V2 port numbers start at 5060 for jack 1, and 5062 for jack 2, 5064 for jack 3 etc. Be sure the gateway port is set to 5060. 

In this example the address is for extension 3101 on FXS jack 2:  
**Example**:    ''3101@192.168.100.243:5062''  

**Please note**: The 3101 will be a 10 digit DID on a hosted system

==== Note on Settings ====

  * Under **Profile-SIP**
    * **Settings-Security**
      * **Accept Incoming SIP from Proxy Only**:
        * Must be set to: ''no''.
    * **Use Random SIP Port**:
      * Must be set to: ''no''.