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As shipped from the factory, the 4600 Series IP Telephones may not contain the latest software. When the telephone is first plugged in, a software download from a TFTP or HTTP server starts to give the telephone its proper functionality.
For downloads of H.323 software upgrades, the PBX provides the capability for a remote restart of the 4600 Series IP Telephone. As a consequence of restarting, the telephone automatically restarts reboot procedures. If new software is available on the server, the telephone downloads it as part of the reboot process.
A 4602, 4602SW, 4602SW+, 4610SW, 4620SW, 4621SW, or 4625SW IP Telephone can support either H.323 or SIP software, but not both at the same time. All telephones come from the factory with H.323 software by default. You can convert a telephone from H.323 to SIP, or from SIP to H.323 by administering your server and settings file. For more information, see “Converting Software on Avaya 4600 Series IP Telephones” in the 4600 Series IP Telephone Installation Guide (Document Number 555-233-128).
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