SpectraLink Versity 9540 - Page 4

Cisco Unified Communications Manager (CUCM) Interoperability Guide
721-0062-000_A.docx
January 2019 4
Transfer: Announced .......................................................................................................39
Transfer: Attended ...........................................................................................................40
Caller ID ............................................................................................................................40
Hold and Resume.............................................................................................................41
Music On Hold ..................................................................................................................41
Call Reject ........................................................................................................................41
Do Not Disturb .................................................................................................................41
Call Park ...........................................................................................................................42
DTMF via RFC2833 ...........................................................................................................42
Call Forward .....................................................................................................................42
Call Forward All Calls Using the Handset ....................................................................42
Call Forward All Calls Using the Cisco UCM ...............................................................43
Call Forward Busy and Call Forward No Answer .........................................................43
Call Forward Timers ....................................................................................................43
Troubleshooting Call Forward Issues ..........................................................................43
Feature Access Codes ....................................................................................................43
SIP Using TCP ..................................................................................................................44
G.722, G.711u, G.711a, G.729A codecs ..........................................................................44
Default Versity Advertised Codec List .........................................................................44
Multiple Line Keys (or Registrations) per Handset ........................................................44
‘Paired’ Lines (Shared Line, Bridged Line) ....................................................................45
Call Pickup .......................................................................................................................45
Trunk Calling ....................................................................................................................45
Failover, Fallback, Redundancy or Resiliency ...............................................................45
TLS & SRTP ......................................................................................................................46
Busy Lamp Field ..............................................................................................................46
Barge-In ............................................................................................................................46
Presence ...........................................................................................................................46
Reset and Restart through the Cisco UCM ....................................................................46
Cisco’s Dial Plan File .......................................................................................................46
Centralized Cisco TFTP Integration ................................................................................47
Cisco XML Applications ..................................................................................................47
Cisco Phone Directory ....................................................................................................47
Cisco Ad-Hoc Conferencing ...........................................................................................47
Chapter 4: Troubleshooting ................................................. 48
SIP Traces on the CUCM .................................................................................................48
DSCP Values ....................................................................................................................48
Audio DSCP ................................................................................................................48