1. System Structure and Set-up
6
AdminGuide-Voss12-1.docx
System Feature
The following table shows all the features of VOSS12.
Table 1-3. System Feature
Category
Detail
Standards
IPv4/v6 Dual Stack
VoIP
-
DNS
DNS Basic (RFC 1034/1035)
UPDATE (RFC 2136)
SRV (RFC 2782)
NAPTR (RFC 2915)
-
SIP
SIP Basic (RFC 3261)
Reliability of Provisional Responses (RFC 3262)
An Offer/Answer Model with SDP (RFC 3264)
Event Notification (RFC 3265)
Asserted Identity within Trusted Networks (RFC 3325)
Instant Messaging (RFC 3428)
Message Waiting Indication (RFC 3842)
Presence (RFC 3856)
Session Timers (RFC 4028)
INFO Method (RFC 2976)
-
SDP
SDP (RFC 2327)
-
RTP
RTP/RTCP (RFC1889)
RTP AVP (RFC1890)
RTP Payload for DTMF Digits (RFC 2833)
etc
-
DHCP
-
FTP
-
HTTP/HTTPS
-
NAT
-
NFS
-
NTP
-
SMTP
-
SNMPv2
-
TFTP
Basic PBX Features
Call Hold/Unhold
Call Transfer (Blind/Attended)
Call Forwarding (Always/Busy/No-Answer/Error/Time-Based)
Call Pickup (Direct/Group)
Call Park/Unpark
Intercom (Direct/Group)
Threeway Call
Music on Hold
Music on Ringback
Group Ringing (Hunt/Circular-Hunt/Ring-All/Random)
Distinctive Ringing
DTMF Relay (in-audio/rfc2833/SIP Info)
Flexible Dialplan
SIP Trunking
DID/DOD
FXO backup (in case VSP is unavailable)