Feature Name Standard SIP Comments Note
Caller ID Yes Caller ID is shown only on ISDN or Analog CO
trunks that are directed at the SIP device. Caller
ID will not display for calls transferred to the SIP
device.
Central Office Calls, Answering Yes
Central Office Calls, Placing Yes
Class of Service Yes
Clock/Calendar Display/Time and
Date
No
Code Restriction/Toll Restriction Yes
Code Restriction Override/Toll Re-
striction Override
No
Code Restriction, Dial Block/Toll Re-
striction, Dial Block
Yes
Conference No
Conference, Voice Call/Privacy Re-
lease
No
Data Line Security Yes Barge-In is not supported.
Delayed Ringing No
Department Calling No
Department Step Calling No
Dial Pad Confirmation Tone No
Dial Tone Detection No
Dialing Number Preview Yes
Direct Inward Dialing (DID) Yes
Direct Inward Line (DIL) Yes
Direct Inward System Access
(DISA)
No
Direct Station Selection (DSS) Con-
sole
No
Directed Call Pickup Yes
Directory Dialing No
Distinctive Ringing, Tones and Flash
Patterns
No
Do Not Disturb (DND) Yes Do Not Disturb (DND) can be set from the SIP de-
vice using dial access codes. In some cases Do
Not Disturb can be set via the SIP device but is
not system side DND.
(SL1100)
Door Box Yes Door Box will not ring a SIP device. A SIP device
can call a door box but cannot activate the relay.
(SL1100)
Flash No
Flexible System Numbering Yes
Flexible Timeouts Yes
Forced Trunk Disconnect No
Group Call Pickup Yes
Group Listen No
Handset Mute/Handset Cutoff Yes Handset mute is a function of the SIP device.
Handsfree and Monitor Yes Hands-free is a feature of the SIP device.
SL1000/SL1100 ISSUE 2.0
1-410
IP Single Line Terminal (SIP)
I
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