I just read on NTAC today that all of the DT9XX-2 phones do not have the ability to convert to Standard SIP. They are no longer making dual purpose phones...
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Does anyone know what's the difference in the DT900 terminal in the settings, where the handsfree mode can be set to "retro" or "new"? Sort by date Sort by votes Apr 17, 2022 Thread starter #2 phadobas Technical User Jul 30, 2005 622 US Got an answer on this one. It's ...