Callmax softswitch technical specification
Minimal required hardware servers:
One server: Xeon X3220+ (4x2.4 GHz), 4GB RAM, 2x250+ GB HDD SAS, SATA3
Required operation system
Linux Ubuntu v.10.04
Database: PostgreSQL
Supported VoIP protocols and codecs
SIP v.2.0 (RFC 3261, RFC 4566)
Media codecs: G.729, G.723.1, G711a-Law, G.711mU-Law
Call routing options
Dial Plan and SIP Trunks based routing
Unlimited number of users
Priority based routing modification
DID numbers support
Gateways support
IP Centrex functions (PBX)
Auto answer attendant (IVR system)
Free/not free calls between users
Conference calls
Hold
Forward
Transfer
Voicemail
Calling card functions
Greeting IVR system for each user
Call back
Bulk users generation system
Refill codes generation system
Smart pit support
PayPal support
Network security and access control
Network topology hiding
Full proxy
NAT support
Authorization by IP and prefix
Authorization by A-number
Authorization by PIN code
Authorization by SIP Login and Password
Billing capabilities
Postpaid and Prepaid options for each user
Support of customer and vendor price lists (one-time, regular, permanent)
Day/time based price lists
Total billing reports for each client for a certain time period
Financial analysis of any selected client and any selected destination
Invoice generation system
Notifications system
CDR (call detailed report) generation
Configuration and administration
Web-based interface
Multi-level permissions for user's access to the system depending on user's profile
