Aastra 9143i Series Administrator's Manual page 20

Update Caller ID During a Call .................................................................................6-8
Boot Sequence Recovery Mode ..............................................................................6-9
Auto-discovery Using mDNS ..................................................................................6-10
Single Call Restriction (6757i CT and 9480i CT only) ............................................6-11
Missed Call Summary Subscription .......................................................................6-13
As-Feature-Event Subscription ..............................................................................6-17
Blacklist Duration ...................................................................................................6-22
Whitelist Proxy .......................................................................................................6-24
Transport Layer Security (TLS) ..............................................................................6-26
802.1x Support .......................................................................................................6-31
Symmetric UDP Signaling ......................................................................................6-43
Removing UserAgent and Server SIP Headers .....................................................6-44
GRUU and sip.instance Support ............................................................................6-45
Multi-Stage Digit Collection (Billing Codes) Support (for Sylantro Servers) ...........6-46
Configurable DNS Queries .....................................................................................6-49
Ignore Out of Sequence Errors ..............................................................................6-51
"Early-Only" Parameter in Replaces Header RFC3891 .........................................6-52
Reason Header Field in SIP Message ...................................................................6-52
Chapter 7
Encrypted Files on the IP Phone
About this chapter ...........................................................................................................7-1
Encrypted Files on the IP Phone ....................................................................................7-2
Configuration File Encryption Method ......................................................................7-2
Procedure to Encrypt Configuration Files ................................................................7-4
Vendor Configuration File Encryption .......................................................................7-6
Chapter 8
Upgrading the Firmware
About this chapter ...........................................................................................................8-1
Upgrading the Firmware .................................................................................................8-2
Using the "Firmware Update" Page in the Aastra Web UI .......................................8-2
Using the Restart Feature ........................................................................................8-5
Using the Auto-Resync Feature ...............................................................................8-7
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