internet phone service

The AC-211, formerly a SunRocket device, is a standard ATA (Analog Telephone Aapter) which enables you to register to a VoIP service provider (ITSP) and use a regular analog phone in order to place and receive calls. This device supports all of the standard features you would expect in an ATA such as the ability to use a standard analog phone, the ability to choose your desired codecs and the ability to be able to place and receve calls without needing your computer.

NOTE: Since the AC-211 is formerly a locked SunRocket only device you will need to have your device de-provisioned or unlocked. We cannot provide you with this information and you will need find this information through your own research. Once you have unlocked your device please make sure that the following is true:

The "Enable Automatic Configuration" is unchecked in your WAN/AutoConfiguration page
That you are running Application Code Version: SIP version >= 4.62 US (APP 14) and Downloader Code Version: >= 4.62 US (LDR 14)

*With versions lower than the above you will experince an issue where your calls to the PSTN are not disconnected properly if you hang up before they are answered.

Once again we cannot and do not provide firmware or unlocking instructions for this device. If the above is true for you then you may continue with the rest of the guide below.

RESOURCES

Main Product Page: Telco Systems - telco.com

Configuring the AC-211

Here you will begin configuring the AC-211 to register to Callcentric's servers. First you will want to make sure that the AC-211 is connected to your router through it's WAN port and that your PC/Laptop is connected to the LAN port of the AC-211. Once you have done this and can verify that you are properly connected, your IP address should be in the 192.168.251.0 network range, please connect to 192.168.251.1 in order to begin configuration.

We recommend that you read each step below through in its entirety before performing the action indicated in the step.

STEP 1

Configure initial SIP information

Login to the AC-211 administrative interface through 192.168.251.1

Select SIP from the menu on the left of page and perform the following

Field	Setting
IP Address:	sip.callcentric.net
Port:
Domain Name:	sip.callcentric.net
Send Registration Request:	CHECKED
Dial Plan:	(>#\|[3469]11\|p([2-9]xxxxxx)1ACO\|1[2-9]x.T\|[2-9]x.T\|011[2-9]x.T\|00[2-9]x.T\|*275x.T\|*xx.T) Where ACO is your local area code. This will enable 10 digit local dialing.
Transport:	UDP
Enable or disable T.38 fax support:	According to your needs. Here we leave it disabled.
User / Phone Num:	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.
CallerID Name:
Port:	5062
AEC on:	ON
Authentication 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 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.

View screenshot

Once done click on the Save SIP Settings button on the bottom of the page to save your changes.

STEP 2

Configure extra settings (SIP Extensions)

Now we will configure the necessary settings such as your registration timeout and ring back settings.
While still under the SIP menu select SIP Extensions and perform the following

Field	Setting
Support PRACK method with provisional response reliability:	UNCHECKED
Encode SIP URI with user parameter:	UNCHECKED
INVITE Expires Timer Value (sec):	3600
SIP Session Timer Value (sec):	3600
SIP Registration Timer Value (sec):	CHECKED and set to 3600
Send RTP on 183 Session Progress:	CHECKED

Once done click on the Save SIP Extension Settings button on the bottom of the page to save your changes.

STEP 3

Configure extra settings (Line1)

Now we will configure the necessary settings such as your DTMF settings.

Click on Line1 and perform the following

Field	Setting
Send Out-Of-Band Telephone Events:	RFC 2833
RFC2833 signalling using payload value:	101
Suppress voice packets during RFC2833 Telephone Event packet transmission:	CHECKED
Play DTMF received via RFC2833:	CHECKED

Once done click on the Save SIP Extension Settings button on the bottom of the page to save your changes

STEP 4

Configure codecs

We are almost done and just need to make sure that our codecs have been configured properly. Since the AC-211 only supports one compressed/complex codec at a time you will have to make a choice between G723 and G729 as your compressed codec. We recomend using G729 however some users may find that G723 sometimes provides better audio clarity. In the end it depends entirely on user preference and you may choose to use whichever codec works best for you.

Select CODECS from the menu on the left side of the page and set the following

Enable a complex codec, either G729 or G723
Set Packetization for each codec to 20ms. Note that you will not be able to set the packetization time for the G723 codec.
Set Silence Surpression to OFF for all codecs.
Select either G729 or G723 as your preferred CODEC option.
*Optionally if you will be using fax please set the FAX Preferred CODEC to G711U.
Leave your Jitter Bufer set to Adaptive Jitter Buffer: at 100ms.

Once done click on the Save CODEC Configuration button on the bottom of the page to save your changes

STEP 5

Check status

You will now want to check to make sure that your AC-211 is registered.

To do that click on the SIP option from the menu on the left side of the page then click on Line1. You should see Registered as your Registration state.

If you do not see this please double check your configuration and then reboot your AC2-11 by turning it off for 30 seconds and turning it back on.

If you do see that your "Registration state" says "Registered" then That's it! You can now make a phone call.

STEP 6

Placing Test Calls

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
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 Asterisk installation, follow the directions listed in this FAQ.