Spectralink Versity Smartphones and Mitel MiVoice Business Interoperability Guide
721-0068-000_A.docx
October 2019 4
Basic Calls .......................................................................................................................35
Voicemail Integration.......................................................................................................35
Message Waiting Indication (MWI) .................................................................................36
Call Waiting......................................................................................................................36
Multiple Calls per Line Key or Maximum Calls per Line................................................36
Conference 3-way............................................................................................................37
Transfer: Blind.................................................................................................................37
Transfer: Announced.......................................................................................................37
Transfer: Attended...........................................................................................................37
Caller ID............................................................................................................................37
Hold and Resume.............................................................................................................38
Music On Hold..................................................................................................................38
Call Reject ........................................................................................................................38
Do Not Disturb .................................................................................................................38
Do Not Disturb Using the Handset ..............................................................................38
Do Not Disturb Using Feature Access Codes (FACs)..................................................39
Call Park...........................................................................................................................39
DTMF via RFC2833...........................................................................................................39
Call Forward.....................................................................................................................40
Call Forward All Calls Using the Handset....................................................................40
Call Forward All Calls Using Feature Access Codes (FACs).......................................40
Feature Access Codes ....................................................................................................40
SIP Using TCP or TLS......................................................................................................41
G.711u, G.711a, G.729A codecs......................................................................................41
Default Versity Advertised Codec List .........................................................................41
Multiple Line Keys (or Registrations) per Handset........................................................41
‘Paired’ Lines (Shared Line, Bridged Line) ....................................................................42
Ring Multiple Phones Simultaneously / Ring Group.....................................................42
Trunk Calling....................................................................................................................42
Failover, Fail-back, Redundancy or Resiliency .............................................................42
Method 1: Using IP addresses (without the use of DNS).............................................43
Method 2: Leveraging DNS.........................................................................................43
Call Resiliency ............................................................................................................44
Fail-back .....................................................................................................................44
Chapter 4: Troubleshooting................................................. 45
SIP Traces on the MiVoice Business System................................................................45
DSCP Values....................................................................................................................45
Audio and Call Control DSCP......................................................................................46