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Supported devices
ATA Adaptors
IP Phones
Cordless DECT IP Phones
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IP PBX Software/Hardware
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Security considerations for Callcentric customers

3CX
3CX Version 6
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3CXPhone (for Windows)
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Callcentric Android App
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Callcentric Softphone
Cisco ATA 186/188
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D-Link DVG-1402S
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Grandstream HandyTone 286
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HTek UC803
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Innomedia SIP MTA-6328
Jitsi
Linksys PAP2
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LinPhone Desktop
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NCH Axon PBX
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Nokia E90
Obihai
OBi100/110
OBi200/202
OBi1032
pbx-in-a-flash
pbxnsip
pbxnsip Version 3
PhonerLite
Polycom SoundPoint IP 601
Polycom SoundStation IP 5000
snom 1xx/2xx/3xx
snom 820
snom M9
snom ONE
SFLphone
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Telco AC-211
trixbox / Elastix / pbx-in-a-flash
Twinkle
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VTech VCS754
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VTech VSP735
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X-Lite / X-Pro / eyeBeam
Yealink T32G
Yealink W52P
Yealink T42G
Yealink T46G
Yeastar MyPBX U100
ZoIPer
ZoIPer 3.2
ZoIPer Mobile
Zoom 5801
Other Linksys/Sipura products
Generic / Other Device

DID-Based Routing with Asterisk
DID-Based Routing with trixbox / Asterisk Admin GUI / Elastix / PBX-in-a-Flash
Yealink T42G

GENERAL INFORMATION
Yealink T46GThe Yealink T42G is a 3-Line IP Phone from Yealink's business line of products. The T42G is simple/straightforward to configure and some of it's most notable features are HD Audio, Gigabit Ethernet, and PoE (Power over Ethernet) support.


RESOURCES
Websites:
Yealink homepage Yealink T42G product page

Help / Support:
Yealink T42G resource page
Yealink T42G product manual


Configuring the Yealink T42G
This guide is based on the Yealink T42G hardware version: 29.0.0.0.0.0.0 running firmware version: 29.72.0.1. If you are running a different firmware revision some of the menus and settings may be different. These instructions are also based on using the T42G in its factory default configuration, which obtains a dynamic IP address automatically from your router using DHCP. For information on configuring your T42G with a Static IP address please refer to the T42G user manual.

For the purpose of this guide we will use the web interface to add a new account.

We recommend that you read each step through in its entirety before performing the action(s) indicated within the step.
STEP 1 Launching the Yealink T42G
Make sure your phone is plugged into a proper power source, is plugged into your ethernet switch or router, and has obtained a proper IP Address. To obtain the IP Address of your phone, please press the Menu soft button then select Status. Once you have the IP Address you may enter it into your favorite browser to reach the phones configuration pages:



STEP 2 Configuring your Callcentric account
We will now create a profile and enter the required credentials, such as your Callcentric number, password, and SIP server:

SettingValue
Label:Callcentric
Register Name:This is either the default extension 1777MYCCID OR 1777MYCCIDEXT, where 1777MYCCID is the 1777 number assigned to you by Callcentric and EXT is the three digit extension you are trying to register this UA to.

For example: 17770001234101 would register to extension 101 on account 17770001234.

You cannot register to your account using only the extension number.
User Name:This is either the default extension 1777MYCCID OR 1777MYCCIDEXT, where 1777MYCCID is the 1777 number assigned to you by Callcentric and EXT is the three digit extension you are trying to register this UA to.

For example: 17770001234101 would register to extension 101 on account 17770001234.

You cannot register to your account using only the extension number.
Password:Enter your SIP Password here. Your SIP password is the same password you selected when you were signing up for your Callcentric account. Optionally you may change it in your extension preferences.
Enable Outbound Proxy Server:Enabled
Outbound Proxy Server:callcentric.com
SIP Server 1: Server Hostcallcentric.com
SIP Server 2: Server Hostcallcentric.com


Once you're done, you can save your settings by clicking on Confirm button located at the bottom of the page.

Your configuration should now look similar to the one shown in the picture below:



STEP 3 Configuring codec settings
We will make sure that only the required codecs are configured at this time. To do so, please click on the Codecs link on the left side of the page, below Basic. On the Codecs Page please make sure that ONLY PCMU, PCMA and G729 are enabled:



STEP 4 That's it! You can now make a phone call.
You can make test calls to 17771234567, or if you are signed up for one of Callcentric's rate plans you can place a call to a traditional landline or mobile phone by dialing either:
1 + the area code and number for calls to the US
Or
011 + the country code, area code, and number for calls worldwide (you may also use 00 instead of 011).

To test inbound calls from Callcentric to your Yealink installation, follow the directions listed in this FAQ.