The 5624 is an OEM ascom i62 handsets. Depending on 3300 software version, you would select 5624 from the 3300/MiVB this would allocate a pre defined sip device capabilities to the user. In essence it is a SIP device like any other. I would recommend getting a programmer or WSM if you have many devices. Also worthwhile trying to get a hold of the ascom interoperability report for your WLAN environment. This will give best practices for setting up the WLAN.
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