eSip is a IP/SIP based unified communications server PBX. It is based upon the industry standard SIP protocol and offers features such as voicemail, unified messaging, auto-attendant, conferencing and presence (SIMPLE). In addition to that, the solution is scalable and can be installed as a highly-available redundant solution.
eSip runs on the Linux Operating system. The table below lists some of the key features of eSip:
| Calling Features |
- Call transfer
- CLID (Calling Line Identification)
- CNIP (Calling party Name identification Presentation)
- Call park and retrieve
- Hunt groups
- Intercom
- Call waiting
- Do not disturb (DnD)
- CFB (Call Forward on Busy)
- CFNR (Call Forward on no response/answer)
- Incoming only
- Music on hold (MoH) with user specific music files
- 3-way video and voice conference on phone
- Click-to-call
- Directory Information (auto generated)
- Multiple calls per line
|
| Application |
- Unified Messaging and Interactive voice response
- Group paging server
- Management and configuration Server
- Web based portal
|
| Remote Branch |
- Centralized deployment – Branches only has phones and/or a PSTN gateway for failover or E911 calls
- Assign users, phones, gateways to branch location
- Define office locations from the management User Interface
|
| Superior Voice Quality |
- Peer-to-peer media routing
- Multiple codec support (audio and video)
- No transcoding
- Lowest delay and jitter for superb voice quality
|
| Carrier Grade Architecture |
- Scalability
- High Availability – Deployed as a highly available, fault-tolerant system.
- Open Architecture – standards based and open API
- Geographical dispersion of redundant systems
- Load balancing based upon DNS SRV
- Automatic recovery after server failure
|
| Standards based |
- Linux Operating System
- Session Initiation Protocol (SIP)
|
| Management Web Portal |
- Each user has personal Web user portal for self-management
- Management of unified messaging
- Follow-me
- Personal call log
- Personal phone book
- Auto-attendant
|
| Dial Plan |
- GUI based dial plan management
- Time based (during office hours , after office hours, holidays, etc.) dial plans and schedules
- Least cost routing
- ENUM Support
- Site-to-site call routing specific rules
|
| CDR storage and reporting |
- Storage in database
- Report generation
- Historic call detail records in real-time
- Monitoring of active/ongoing calls
- Export CDRs to excel
- Individual call history on user portal
|
| Plug and Play Device Management |
- Auto-discovery of phones on the network
- Plug and play management of phones
- Centralized management
- Firmware upgrade management
|
| Unified Messaging |
- Unified Voicemail messaging system
- Access voicemail remotely using a phone
- Manage folders for message organization
- Message Waiting Indication (MWI)
- Receive voicemail messages as attachment to email account
- Multiple customizable greetings
|
| Conferencing Server |
- Each user can have a personal conference bridge
- Recording of conference calls
- Conferencing server centrally managed and configured
- Dedicated hardware for conferencing server
|
| IVR (Interactive Voice Response) |
- Allows a computer to detect voice and dual-tone multi-frequency signaling (DTMF) keypad inputs
- Used to control almost any function where the interface can be broken down into a series of simple menu choices
- Information can be fed to the caller allowing choices such as: wait in the queue, choose an automated service, or request a callback
|
| Security |
- All outbound calls authenticated
- Secure user password management
- DoS attack prevention
- HTTPS secure Web access
|