ATCOM A21 User manual

A2X(W)/A20LTE IP Phone User Manual
Version: 3.0
2018-11-26

A2X(W)/A20LTE IP Phone User Manual
ATCOM TECHNOLOGY CO., LIMITEwww.atcom.cn2
Content
Contact ATCOM ................................................................................. 5
1. Overview of A2X(W)/A20LTE ................................................................... 6
1.1. Interface ............................................................................. 7
1.2. Hardware ............................................................................. 7
1.3. LTE data parameters .................................................................. 7
1.4. Software ............................................................................. 8
1.5. Network .............................................................................. 9
1.6. Management and Maintenance ........................................................... 9
1.7. Protocol ............................................................................ 10
1.8. Compliant and Certified Standard .................................................... 10
1.9. Packing list ........................................................................ 10
1.10. Connection ......................................................................... 11
1.10.1. Connect wired network ...................................................... 11
1.10.2. Connect WiFi network ....................................................... 11
1.10.3. Connect LTE network ........................................................ 12
1.11. Installation ....................................................................... 13
1.11.1. Connecting port introduction................................................. 13
1.11.2. Installation instruction ....................................................... 14
2. Call Function .............................................................................. 20
2.1. Answer the calls .................................................................... 20
2.2. Make Calls .......................................................................... 21
2.3. Pre-dial ............................................................................ 22
2.4. Multiple line dial-up ............................................................... 23

A2X(W)/A20LTE IP Phone User Manual
ATCOM TECHNOLOGY CO., LIMITEwww.atcom.cn3
2.5. Call Hold ........................................................................... 23
2.6. Call Transfer ....................................................................... 23
2.7. Mute calls .......................................................................... 24
2.8. 5-Way Conference .................................................................... 24
2.9. Hang up the phone ................................................................... 26
2.10. Voicemail .......................................................................... 26
3. Keypad and GUI ............................................................................ 27
3.1. Keypad .............................................................................. 27
3.2. Starting ............................................................................ 29
3.3. Standby ............................................................................. 31
3.4. Configuration ....................................................................... 33
3.4.1. Status info .................................................................... 34
3.4.2. Call Features .................................................................. 36
3.4.3. Contacts ...................................................................... 49
3.4.4. History ........................................................................ 56
3.4.5. Message ...................................................................... 59
3.4.6. Settings ...................................................................... 60
3.4.7. Display ....................................................................... 79
4. Advanced Feature .......................................................................... 80
4.1. Codecs .............................................................................. 80
4.2. Capture and Upgrading ............................................................... 81
4.3. Auto Provision ...................................................................... 82
4.4. Export & Import configuration file .................................................. 84
4.4.1. Export configuration file ....................................................... 84
4.4.2. Import configuration file ...................................................... 85

A2X(W)/A20LTE IP Phone User Manual
ATCOM TECHNOLOGY CO., LIMITEwww.atcom.cn4
4.5. Export System log ................................................................... 85
4.6. Dial plan ........................................................................... 86
4.6.1. Replace Rule .................................................................. 87
4.6.2. Dial-now ...................................................................... 88
4.6.3. Area Code .................................................................... 89
4.6.4. Block Out ..................................................................... 90
5. WI-FI(For A20W and A20WAC) ................................................................ 91
5.1. Configure the WIFI on the phone ..................................................... 91
5.2. Configure the WIFI on the WEB ....................................................... 91
5.3. Enterprise WiFi ..................................................................... 92
6. LTE Network (For A20LTE) .................................................................. 93
6.1. Configure the LTE on the phone ...................................................... 93
6.2. Configure the account on the LTE network ............................................ 93
7. FAQ ....................................................................................... 94
7.1. How to reset to factory ............................................................. 94
7.2. Upgrade the firmware on safe mode ................................................... 95
7.3. How to make IP Peer to Peer call .................................................... 95
8. Troubleshooting ........................................................................... 97
8.1. The phone is failed to register to SIP server ....................................... 97
8.2. The phone is failed to gain IP address .............................................. 97
8.3. Only one party can hear from another on calling ..................................... 97
9. Abbreviation .............................................................................. 98
10. FCC Caution .............................................................................. 99

A2X(W)/A20LTE IP Phone User Manual
ATCOM TECHNOLOGY CO., LIMITEwww.atcom.cn5
Contact ATCOM
Overview of ATCOM
ATCOM is the leading VoIP hardware manufacturer in global market. We have been keeping
innovating with customer’s needs oriented , working with partners to establish a total solution
for SMB VoIP with IP phone , IP PBX and Asterisk cards.
With over 10 years’ experience of R&D , manufacturing and service in network and VoIP
filed;mission of creating the biggest value for IP terminals , we commit ourselves in supplying
the competitive IP phone and other terminals for IP PBX , softswitch , IMS , NGN providers and
carriers; supplying the competitive total VoIP solution for SMB market. We keep improving the
customer’s experience and creating the bigger value with our reliable products. Until now, our
VoIP products have been available in 100+ countries and used by millions of end users.
Contact Sales
Address
Area C, A2F , Block 3 ,Huangguan Technology Park , #21
Tairan 9th Rd, Chegongmiao , Futian District , Shenzhen China
Tel
+ (86) 755
-
83018618
Fax
+ (86) 755
-
83018319
E
-
mail
sales@atcom
.com.cn
Contact Technical Support
Tel
+ (86) 755
-
83018618
E
-
mail
Support@atcom
.com.cn
Website Address: http://www.atcom.cn/

A2X(W)/A20LTE IP Phone User Manual
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1. Overview of A2X(W)/A20LTE
A2X(W)/A20LTE
Type
POE
Power adapter
Wi
-
Fi
1000M
4G(LTE)/3G
A2
1
Yes
Optional
accessory
No
No
No
A
20
W
No
Necessary
Y
es
No
No
A26
Yes
Optional
accessory
No
Yes
No
A20WAC
No
Necessary
Yes
(2.4G+5G)
No
No
A20LTE
No
Necessary
NO
No
Yes

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1.1. Interface
Power Input
DC 5V
-
1000mA or POE
L
AN
Port
RJ45
PC
Port
RJ45
Headset Jack
RJ9
Handset Jack
RJ9
LTE Nano card Port
Nano
-
SIM card port(A20LTE)
1.2. Hardware
LCD
132*52
CPU
400MHz Dual
-
Core
LED
Indicator
1 Status Light
, 2 line
indicators
1.3. LTE data parameters

A2X(W)/A20LTE IP Phone User Manual
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LTE
Frequency band
LTE FDD: B1/ B3/ B8
LTE TDD: B38/ B39/ B40/ B41
TDSCDMA: B34/ B39
WCDMA :B1/ B8
LTE
Version
3GPP E
-
UTRA Realease 11
Bandwidth
1.4 /3 /5 /10/20MHz
Antenna
DL MIMO
, Support receive diversity
Data
L
TE
LTE FDD: Max 1500Mbps (DL) Max 50Mbps (UL)
LTE TDD: Max 130Mbps (DL) Max 35Mbps (UL)
DC
-
HSPA+
Max 42Mbps (DL) Max 5.76Mbps (UL)
UMTS
Max
384
Mbps (DL) Max
384
Mbps (UL)
TD
-
SCDMA
Max 4
.
2Mbps (DL) Max
2.2
Mbps (UL)
CDMA
Max
3.1
Mbps (DL) Max
1.8
Mbps (UL)
EDGE
Max
236.8K
bps (DL) Max
236.8K
bps (UL)
GPRS
Max
85.6K
bps (DL) Max
85.6K
bps (UL)
1.4. Software
 Sip 2.0 (RFC3261) and other related SIP RFCs
 6 SIP accounts registration
 STUN
 Jitter Buffer, VAD,CNG
 G711A, G711U, G722, G726-16, G726-24, G726-32, G726-40, G729, L16, iLBC_13_3,
iLBC_15_2, OPUS
 Echo Cancellation
 SIP Domain name, Authentication and Backup SIP Server
 DTMF（RFC2833, Inband, SIP INFO)
 Call transfer, Call forward, 5-way conference, Call hold, Call back
 DND(Do Not Disturb), Auto answer, Blacklists, Block Call-ID, Block Anonymous call, Dial
plan, IP call
 Phone book with 1000 contacts and 50 blacklists
 Call History with 400 records include answered calls, missed calls, dialed calls and forward
calls
 Auto update via HTTP, HTTPS, FTP, TFTP, DHCP, RPS and PNP

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 Syslog
 SNTP, NTP
 Customized Ringtone
 Daylight Saving time
 VLAN, OpenVPN, Span to PC port, QoS
 802.1X, LLDP
 Enterprise WIFI
 WEB access with different login level
 Soft button: soft button *3
 Redundancy SIP server
 Multi-language: English, French, Hebrew, Russian, Spanish, Simplified or Traditional
Chinese, Persian, Polish, Portuguese, Turkish, German, Italian
 Support 2.4GHz and 5GHz WiFi
 Support 4G(LTE) & 3G
1.5. Network
 LAN/PC: Support Bridge mode
 Support VLAN
 SupportOpen VPN
 IPv6
 Support DHCP, STATIC IP
 Primary/SecondaryDNS Server
 Support QoS
 Support LLDP
 Support 802.1X
 Support Span pc port
 Support Enterprise WIFI
 Web access via HTTP&HTTPS
 A20W support 2.4GHz WiFi with 802.11n protocol
 A20WAC support 2.4GHz WiFi and 5GHz WiFi with 802.1Ac protocol
 A20LTE support 4G(LTE) and 3G access
1.6. Management and Maintenance
 Support firmware updating under safe mode
 Support different level user management
 Configuration via web , keyboard
 Support multi-language
 Firmware and configuration file auto provision
 Support system log

A2X(W)/A20LTE IP Phone User Manual
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1.7. Protocol
 IEEE 802.3 /802.3 u 10 Base T / 100Base TX
 DHCP: Dynamic Host Configuration Protocol
 SIP RFC3261, RFC3262, RFC3263, RFC3264, RFC3265, RFC2543, RFC3489, RFC3842,
RFC3515, RFC2976, RFC3428, RFC2327, RFC2782, RFC1889
 TCP/IP: Transfer Control Protocol/Internet Protocol
 RTP: Real-time Transport Protocol
 RTCP:RTP Control Protocol
 DNS: Domain Name Server
 TFTP: Trivial File Transfer Protocol
 HTTP:Hypertext Transfer Protocol
 FTP:File Transfer Protocol
1.8. Compliant and Certified Standard
 CE: AGC01180140201E2，AGC01180140202E2
 Comply with ROHS in EU
 Comply with ROHS in China

 Operation temperature: lower than 60° C
 Storage temperature: lower than 60° C
 Humidity: 10 to 90% no dew
1.9. Packing list
Model
A2X(W)
Telephone
1 Unit
Handset
1 Unit
Handset cable
1 Unit
Stand bracket
1 Unit
Wall bracket
1 Unit
Power adapter
Optional for A21,A26
Standard for A20W, A20WAC,A20LTE

A2X(W)/A20LTE IP Phone User Manual
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Network Cable
1 Unit
，
1.5 meters
Quickstart Guide
1 Unit
Headset
Optional
1.10. Connection
1.10.1. Connect wired network
A2X(W)/A20LTE is able to be connected with network via LAN port. Under the Bridge mode,
other devices (Laptop, IP phone) is able to access network via the PC port of A2X(W).
The topology is as follows:
1.10.2. Connect WiFi network
A20W and A20WAC is able to connect the WiFi.
The topology is as follows:

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1.10.3. Connect LTE network
If enable LTE setting, A20LTE get service network.
(Note: The A20LTE phone can communicate with other devices through the LTE data
acquisition network. The acquired LTE data network is the public network of the carrier. At this
time, the phone web interface cannot be accessed.)
The topology is as follows:
1. Press Menu → LTE Setting, enable LTE feature
2. After enable LTE, press ↓ key, you can see Network service, Network type,
Signal strength and IMSI.

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1.11. Installation
1.11.1. Connecting port introduction
The A2X(W) connecting port introduction, please refer as below picture:
The A20LTE connecting port introduction,
From as below picture show the connecting port and insert the standard Nano-SIM card into
the back cover way:
(Note: please don’t plug in and off Nano card when the phone connected power)

A2X(W)/A20LTE IP Phone User Manual
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1.11.2. Installation instruction
1. Stand bracket installation instruction
A. Put the bottom side of the IP phone upside and press one-side joints of stand bracket
into the slot, please refer the picture as below:

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B. Press the other side joints into the slot according to the direction of the arrow:
C. It is the right picture after fixing the stand bracket below:

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D. Disassemble the stand bracket:
Push the spring joint of stand and pull the stand according to the direction of the arrow.
When the joints are pulled out of the slot, you can take off the stand bracket
2. Wall-hung Installation
A. Put the bottom side of the IP phone upside and press one-sidejoints of wall-hung stand
bracket into the slot, please refer the picture as below:

A2X(W)/A20LTE IP Phone User Manual
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B. Press the other side joints into the slot according to the direction of the arrow

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C. After install the wall-hung stand bracket, press one-sidejoints of stand bracket into the
slot, please refer to the picture as below:
D. Press the other side joints into the slot according to the direction of the arrow
E. Knock in nails or screws on the wall according to the proportion of the distance between
the hanging holes as below:

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F. It is the right picture after fixing the stand bracket below:
G. Disassemble the stand bracket:

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Push the spring joint of stand and pull the stand according to the direction of the arrow.
According to the direction of the arrow:
2. Call Function
2.1. Answer the calls
When there is an incoming call, phone will remind user with ringing. There are 3 ways to
answer the call:
A. Answer by handset
Pick up the handset and talk with the caller. If you want to hang up, just put back the handset.
When you are talking with the handset and want to switch to speaker or headset mode, please
press key or key,and then put down the handset.
B. Answer by speaker