Supported devices
ATA Adaptors
IP Phones
Cordless IP Phones
IP Conference Phones
IP PBX Software/Hardware
Desktop Softphones
Mobile Softphones

Security considerations for Callcentric customers

3CX Version 6
3CX Version 12
3CX Version 12.5
3CX Version 15
3CX Version 16
3CXPhone (for Windows)
3CXPhone (Mobile)
Aastra 6753i
Acrobits/Groundwire for iPhone
Android SIP Client
Apivio MWP1100
Asterisk 1.4 and 1.2
Asterisk 1.6
Asterisk 1.6.2, 1.8, and 10
Asterisk 14
Asterisk 17 CHAN_SIP (Vanilla)
Asterisk 17 PJSIP (Vanilla)
Asterisk Admin GUI v2.11
Asterisk Admin GUI v12
Asterisk Admin GUI v13
Asterisk Admin GUI v15
Bria Solo
Bria Desktop
Bria Mobile
Cisco ATA 186/188
Cisco SPA112/SPA122
CloudTC Glass 1000
D-Link DVG-1402S
Gigaset A510 IP
Gigaset C610A IP
Gigaset DX800A
Grandstream DP715/710
Grandstream DP750/720
Grandstream DP752/730/722
Grandstream GAC2500
Grandstream GRP2612
Grandstream GRP2613
Grandstream GRP2614
Grandstream GRP2615
Grandstream GXP1450
Grandstream GXP1620
Grandstream GXP1625
Grandstream GXP1630
Grandstream GXP1760
Grandstream GXP1782
Grandstream GXP2110
Grandstream GXP2130
Grandstream GXP2140
Grandstream GXP2160
Grandstream GXP2170
Grandstream GXP2200
Grandstream GXV3140
Grandstream GXV3240
Grandstream GXV3275
Grandstream GXV3370
Grandstream GXV3380
Grandstream HandyTone 286
Grandstream HandyTone 486
Grandstream HandyTone 702
Grandstream HandyTone HT802
Grandstream HandyTone HT814
Grandstream HandyTone HT818
Grandstream UCM6102
Grandstream UCM6204
Grandstream Wave Lite
Grandstream WP820
Htek UC803
Htek UC860
Htek UC924
Htek UC926
Innomedia SIP MTA-6328
Innomedia BuddyTalk 110
Linksys PAP2
Linksys SPA3102
Linphone Desktop (v4.1.1)
Linphone Desktop (v3.4.3)
Linphone Mobile
Linphone Mobile (v.3.2.3)
NCH Express Talk
Nokia E90
pbxnsip Version 3
Polycom SoundPoint IP 601
Polycom SoundStation IP 5000
snom 1xx/2xx/3xx
snom 820
snom D717
snom D735
snom D785
snom M9
snom ONE
Telco AC-211
trixbox / Elastix / pbx-in-a-flash
Windows Messenger
Unidata ICW1000G
Uniden EXP1240
UTStarcom F3000
Vodia PBX (v5)
Vodia PBX (v64.0)
VTech VCS754
VTech VDP650
VTech VSP600
VTech VSP725
VTech VSP726
VTech VSP735
VTech VSP736
X-Lite / X-Pro / eyeBeam
Yealink T32G
Yealink T41S
Yealink T42G
Yealink T42S
Yealink T46G
Yealink T46S
Yealink T48S
Yealink W52P
Yeastar MyPBX U100
ZoIPer 3.2
ZoIPer 5
ZoIPer Mobile
Zoom 5801
Zycoo CooVox U20
Other Linksys/Sipura products
Generic / Other Device

DID-Based Routing with Asterisk
Linphone Desktop (v4.1.1)

For Linphone Desktop version 3.4.3 setup information please click here
For Linphone Mobile version 3.2.3 setup information please click here
For Linphone Mobile version 1.1.6 setup information please click here

Linphone is an open source VoIP softphone available for most of the major desktop operating system and mobile platforms. Configuring Linphone takes just minutes and the software is excellent fit for both newbies and advanced users.

Linphone homepage

Linphone Documentation

Configuring Linphone
This guide is based on Linphone 4.1.1 for the Windows operating system. As the interface is similar for Linux and OSX; this guide can also be used in those environments.

We recommend that you read each step through in its entirety before performing the action(s) indicated within the step.
Step 1 Launching the application
Upon launching the application, you will be directed to the LinPhone Welcome Assistant as shown in the screenshot below. On this page, select USE A SIP ACCOUNT.

Step 2 Configuring your Callcentric Account
To create your profile, please enter the settings detailed below. Once completed, click the Use button to proceed to the next step.

UsernameThis 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.
Display nameYou may specify any name on this option
PasswordEnter your extension SIP Password here. Your extension SIP password is the password you created for the extension you are trying to use. You may edit the SIP password you wish to use in by logging into your My Callcentric account and clicking on the Extension menu link and then modifying the appropriate extension.

Step 3 Activating your SIP account
Upon returning back to the main window of the application, click on the top left corner of the application, which will allow you to switch between SIP accounts. Select your Callcentric Account and ensure that you've set the Presence Status option to Available, as detailed in the screenshots below:

Once completed, click the OK button to proceed to the next step.

Step 4 Additional Account Settings
From the main interface screen click on the icon in the upper right corner, which resembles 3 horizontal bars, and select the Preferences option:

From the SIP accounts tab, locate the section labeled Proxy accounts and click the Edit icon located next to the account that you've created for our service. From this window, set the options detailed below and then click the Confirm button to finish:

Enable AVPFDisabled

Once completed, click the OK button to proceed to the next step.

Step 6 Additional miscellaneous settings
Next, within your Preferences settings window, click on the Audio tab and locate the section labeled Audio codecs. In this section, disable all codecs except for the PCMU (ITU-G.711 ulaw encoder) codec, as detailed in the screeenshot below:

Finally click on the Network tab and ensure that you DISABLE the following settings, as detailed in the screenshot below:

- Allow IPv6
- SIP TCP port
- Enable TLS

Once completed, click the OK button to finish your setup.

Step 7 That's it! You can now make a phone call.
You can make a test call 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
011 + the country code, area code, and number for calls worldwide (you may also use 00 instead of 011).