SIP IP Phone Models 9143i, 9480i, 9480i CT and 5i Series Phones Release Note 2.3
New Features in Release 2.3
SIP Features
P-Asserted-Identity (PAI) Support in UPDATE message
In previous releases, the IP Phones supported
If an UPDATE is received with a PAI header from a trusted source, the phone updates the display with this information. The phone ignores any PAI received from untrusted entities.
DTMF Tones in Info Requests
In Release 2.3, the phones now support decoding and playing out DTMF tones sent in SIP INFO requests. The following is now supported:
•Support signals
•Support durations up to 5 seconds
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