A21

A21

General       

-   Maximum of 4 VoIP accounts

-   3」
Monochrome LCD

-   Wideband G.722 Codec

-   IPv4

-   WAN
port and LAN port

-   PoE
(This option must be specified at the time of order placement)

Server Compliance

-   Asterisk / Broadsoft  / Alcatel / NEC / Avaya / Aastra

-   Mitel (Q1 2014)

Call features      

-   Call
Hold

-   Call
Flash    

-   Call
Forward

-   Call
Waiting Indication     

-   Call
transfer (blind/attended)

-   Caller
ID display

-   Redial
List and redial

-   Do not disturb DND

-   Mute

-   Auto-answer

-   3-way
conferencing

-   Configurable
hotkeys for speedial / voicemail 

-   Message
Waiting Indication (MWI) LED

-   Volume
control

-   Direct
IP call without SIP proxy   

-   Ring
tone selection

-   Phonebook
(15+
entries), Black list

-   Call
history: dialled/received/missed/forwarded

-   LCD
menu user interface

-   Web
Portal for administrators

             

Physical Features            

-   3」 Monochrome LCD

-   Four softkeys

-   Eight function keys including one programmable
memory button(This option must be specified at the time of
order placement)

-   LED
for MWI

-   RJ45
10/100MEthernet
WAN port

-   RJ45
10/100MEthernet
LAN port

-   Power
adapter: AC 100~240V input DC
12V/1.2Aoutput (This option must be
specified at the time of order placement)

-   Power
over Ethernet IEEE 802.3af
(This option must be specified at the time of order
placement)

 

Codecs and Voice Features           

-   Wideband
codec: G.722  

-   Narrowband
codec: G.729, ILBC  

-   G.729   

-   VAD,
CNG, AEC, PLC, AJB, AGC   

-   Full-duplex
speakerphone with AEC    

Network Features           

-   SIP
v1 (RFC2543), v2 (RFC3261)

-   IPv4

-   VLAN
QoS (802.1pq)

-   NAT
Traversal: STUN mode  

-   DTMF:
In-Band, RFC2833, SIP Info

-   Proxy
mode and peer-to-peer SIP link mode  

-   IP
Assignment: Static/DHCP/PPPoE

-   Bridge/router
mode for PC port   

-   TFTP/DHCP/PPPoE
client  

-   Telnet/HTTP
server

-   DNS
client   

-   NAT/DHCP
server

 

Management and Provisioning

-   F/W provision via TFTP/HTTP

-   Auto-provisioning: Option66

-   Mass-configuration
tool for system integration (check with your local supplier / distributor)

-   Telnet