Voice Features

• G.711 a-law 64K
• Packet Interval: 20/30/40 ms
• Concurrent Calls: 32 ch @ 20 ms
• G.711 μ-law 64K
• Packet Interval: 20/30/40 ms
• Concurrent Calls: 32 ch @ 20 ms
• G.723.1 5.3K/6.3K
• Packet Interval: 30/60/90 ms
• Concurrent Calls: 32 ch @ 30 ms
• G.726 32K
• Packet Interval: 20/30/40 ms
• Concurrent Calls: 32 ch @ 20 ms
• G.729 8K
• Packet Interval: 20/30/40 ms
• Concurrent Calls: 32 ch @ 20 ms
• DTMF Detection and Generation
• Silence Suppression & Detection
• Comfort Noise Generation (CNG)
• Voice Activity Detection (VAD)
• Echo Cancellation (G.165/G.168)
• Adaptive (Dynamic) Jitter Buffer
• Call Progress Tone Generation
• Auto or Programmable Gain Control
• Built-in Local Mixer
• ITU-T V.152 Voice-band Data over IP Networks

SIP Call Features

• Peer to Peer Call
• Call Hold / Retrieve
• Call Waiting
• Call Pick Up
• Call Park / Retrieve (SIP Server Required)
• Call Forward - unconditional, busy, no answer
• Call Transfer - attended, unattended
• Do Not Disturb
• Speed Dialing
• Repeat Dialing
• Three-way Calling
• MWI (RFC-3842)
• Hot Line and Warm Line

Telephony Specifications

• In-Band DTMF, Out-of-Band DTMF Relay (RFC2833 or SIP INFO)
• DTMF / PULSE Dial Support
• Caller ID Generation / Detection:
• DTMF
• FSK-Bellcore Type 1 & 2
• FSK-ETSI Type 1 & 2
• FSK-NTT
• FSK: Calling Name, Number, Date and Time, VMWI
• FXS Metering Pulse:
• Polarity Reversal
• 12 kHz calling tone
• 16 kHz calling tone
• T.30 FAX Bypass to G.711, T.38 Real Time FAX Relay
• FXS Line test and diagnostics with visual alarm
• indication
• Inward self test:
• Loopback - codec
• Loopback - analog
• SLIC DC power voltage
• Tip / Ring DC feed
• Ringer
• Outward Test (GR909 Standard) :
• REN
• Phone Line disconnected
• H.F. DC Voltage (Hazardous and foreign DC Voltage)
• H.F. AC Voltage (Hazardous and foreign AC Voltage)
• Tip / Ring Short
• Modem over IP up to V.34
• ROH Tone (Receiver Off-Hook Tone @ 480 Hz)
• Loop Current Suppression

SIP Account Management

• By Port Registration
• By Device Registration (share account)
• Mixed Mode (Hunt number for inbound, by port number for outbound)
• Invite with Challenge
• Register by SIP Server IP Address or Domain Name
• Support RFC3986 SIP URI Format

SIP Call Management

• Support Outbound Proxy
• Register up to three SIP servers
• SIP Registration Failover Mechanism
• Group Hunting
• Privacy Mechanism / Private Extensions to SIP
• Session Timers (Update / Re-invite)
• DNS SRV Support
• Call Types: Voice / Modem / FAX
• Call Routing by Prefix Number
• User Programmable Dial Plan Support
• CDR Client
• Manual Peer Table (for P2P calls)
• E.164 Numbering, ENUM support

IP Network Specifications

• Support IPv4, IPv6 future upgradable (Option)
• WAN: Static IP, PPPoE, DHCP, PPTP

Network Protocol Support:

IP, TCP, UDP, TFTP, FTP, RTP, RTCP, ARP, RARP, ICMP, NTP, SNTP, SNMP v1/v2, HTTP, HTTPS, DNS, DNS SRV, Telnet, DHCP Server, DHCP Client, STUN Client, UPnP, IGMP snooping, IGMP proxy QoS Support: WAN: DiffServ, IP Precedence, Priority Queue, Rate Control, 802.1Q (VLAN Tagging), 802.1p (Priority Tag) LAN: Rate Limit DDNS Support Network Security Specifications

• VPN PPTP Client
• DIGEST Authentication
• MD5 Encryption
• DoS Protection

Management

• Web-based Configuration
• Auto-provisioning (HTTP / HTTPS)
• Telnet
• IVR
• FTP / TFTP / HTTP Software Upgrade
• Configuration Backup and Restore
• Reset to Default Button
• TR-069/104 (Option)

SIP, Voice and FAX Related Standard

• RFC1889 RTP: A Transport Protocol for Real-Time Applications.
• RFC2543 SIP: Session Initiation Protocol
• RFC2833 RTP Payload for DTMF Digits, Telephony
• Tones and Telephony Signals
• RFC2880 Internet Fax T.30 Feature Mapping
• RFC2976 The SIP INFO Method
• RFC3261 SIP: Session Initiation Protocol
• RFC3262 Reliability of Provisional Responses in
• Session Initiation Protocol (SIP)
• RFC3263 Session Initiation Protocol (SIP): Locating SIP Servers
• RFC3264 An Offer/Answer Model with Session Description Protocol (SDP)
• RFC3265 Session Initiation Protocol (SIP) - Specific Event Notification
• RFC3311 The Session Initiation Protocol (SIP) UPDATE Method
• RFC3323 A Privacy Mechanism for the Session Initiation Protocol (SIP)
• RFC3325 Private Extensions to the Session Initiation
• Protocol (SIP) for Asserted Identity within Trusted Networks
• RFC3362 Real-time Facsimile (T.38) - Image/t38 MIME Sub-type Registration
• RFC3515 The Session Initiation Protocol (SIP) Refer Method
• RFC3550 RTP: A Transport Protocol for Real-Time
• Applications. July 2003
• RFC3665 Session Initiation Protocol (SIP) Basic Call

Flow Examples

• RFC3824 Using E.164 numbers with the Session
• Initiation Protocol (SIP)
• RFC3842 A Message Summary and Message Waiting
• Indication Event Package for the Session Initiation
• Protocol (SIP)
• RFC3891 The Session Initiation Protocol (SIP)
• “Replaces” Header

RFC3892 The Session Initiation Protocol (SIP) Referred-By Mechanism RFC3960 Early Media and Ringing Tone Generation in the Session Initiation Protocol (SIP) RFC3986 Uniform Resource Identifier (URI): Generic Syntax RFC4028 Session Timers in the Session Initiation Protocol (SIP) Draft-ietf-sipping-service-examples-08 for call features