SipX is an open source Voice over IP telephony server. The Main feature of SipX is the software implementation of the Session Initiation Protocol (SIP), which makes it an IP based communications system (IP PBX).
MARS has the expertise in developing, implementing and maintaining almost all the PBX features as listed
The Core Calling Features of IPPBX are as follows:
- Transfer (consultative & blind)
- Call coverage
- Call hold / retrieve
- Consultation hold
- Music on Hold for IETF standards compliant phones
- Admin or user configurable Busy Lamp Field (BLF) presence and softkeys
- Uploadable music file
- 3-way conference
- Call pickup (global and directed call pickup)
- Call park & retrieve
- Hunt groups
- Intercom with auto-answer (bi-directional)
- SIP URI dialing
- CLID (Calling Line Identification)
- CNIP (Calling party Name Identification Presentation)
- CLIP (Call Line Identification Presentation)
- CLIR (Call Line Identification Restriction)
- Per gateway CLIP manipulation
- Call waiting / retrieve
- Do not Disturb (DnD)
- Forward on busy, no answer, do not disturb
- Multiple line appearances
- Multiple calls per line
- Multiple station appearance
- Outbound call blocking
- Click-to-dial (Windows XP)
- Redial
- Call history (dialed, received, missed)
- Auto off-hook / ring down
- Incoming only
- Configuration of individual Speed Dial softkeys
- Auto-generation of Directory information
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