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
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
CSipSimple
D-Link DVG-1402S
Ekiga
Elastix
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
Jitsi
Linksys PAP2
Linksys SPA3102
Linphone Desktop (v4.1.1)
Linphone Desktop (v3.4.3)
Linphone Mobile
Linphone Mobile (v.3.2.3)
NCH Axon PBX
NCH Express Talk
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 D717
snom D735
snom D785
snom M9
snom ONE
SFLphone
SJphone
Telco AC-211
trixbox / Elastix / pbx-in-a-flash
Twinkle
Windows Messenger
Unidata ICW1000G
Uniden EXP1240
UTStarcom F3000
VitalPBX
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
ZoIPer 3.2
ZoIPer 5
ZoIPer Mobile
Zoom 5801
Zycoo CooVox U20
Other Linksys/Sipura products
Generic / Other Device

DID-Based Routing with Asterisk
Linksys SPA3102

GENERAL INFORMATION
The SPA3102 is a Linksys device, similar to the PAP2/T line of devices in appearance and configuration. In addition to the similar appearance the SPA3102 also adds extra features not present in the PAP2/T such as an FXO (Foreign Exchange Office: allowing you to use a normal PSTN line or PBX line for redundancy in case of an outage on your ISP...etc) and a built in router allowing you to share your internet without the need for a standard router/switch.

The SPA3102 is reliable and relatively inexpensive and can be considered by individuals who want the extra PSTN functionality for their specific environments.


RESOURCES
SPA3102 Product Page


CONFIGURING Linksys SPA3102
The configuration information below is based on firmware version 5.1.7(GW), which is the latest version as of this writing.

Before we proceed please make sure that your SPA3102 is powered on and that you have an ethernet (RJ45) cable connected with one end to your router/modem/gateway and the other end to the blue port on the back of the SPA3102. You will also want to connect a regular telephone (RJ11) cable to the phone port labeled "Phone". Once you have verified this please continue configuring your device with the instructions below.

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

STEP 1a

If this is your first time configuring your SPA3102 then you will need to first find the IP address of your device and then enable HTTP configuration. To do so have a pen and paper ready to write down the IP address. Once you're ready do the following:

  1. Pick up you telephone handset

  2. Dial ****, do this even if you hear a busy signal

  3. You will hear a message - "Linksys configuration menu. Please enter option followed by the pound key...", then enter 1 1 0 # on your phone.

  4. You will now hear a message giving you the IP address of your PAP2 such as - "192.168.001.100". Write this number down


Do not hang up yet. as now you will need to enable web-based configuration, since by default the web-based configuration for the WAN port is disabled. To enable web-based configuration:

You will hear the menu prompt again after acquiring the IP address.
After hearing the prompt dial 7932# followed by 1# then 1 when asked to save the change.

You should now have the IP address for your SPA3102 as well as the ability to configure your device through your web browser. Continue onto Step 2 below.

STEP 1b

If you have already enabled web configuration you simply need to acquire your device's IP address in order to configure it. If your computer is not connected to the yellow port on the back of the SPA3102 then please do the following:

  1. Pick up you telephone handset

  2. Dial ****, do this even if you hear a busy signal

  3. You will hear a message - "Linksys configuration menu. Please enter option followed by the pound key...", then enter 1 1 0 # on your phone.

  4. You will now hear a message giving you the IP address of your PAP2 such as - "192.168.001.100". Write this number down


Else if your PC is connected to the yellow port on the back or your SPA3102 then the SPA3102 IP should be 192.168.0.1, unless you changed the subnet in your advanced configuration.

Once you have acquired your device's IP continue on to Step 2 below.

STEP 2

Now that you have your device's IP address simply open your favorite web browser and enter the IP address in the address bar and press enter.

Please note: You do not need to enter the leading zero's ( 0 's ) in the IP address. For example if you heard "192.168.001.010" you should change this to "192.168.1.10"

By default the SPA3102 does not have an username/password associated with it. If you are prompted for a username and password please enter the one you configured. Once logged in you should see a page such as the following:


STEP 3

We now want advanced access to this device so that we may make the proper configuration changes. First click on Admin login from the right side of the page, then click on Advanced:



We are now ready to enter your Callcentric account information as well as properly configure your time and DNS servers. Continue to Step 4.

STEP 4

Click on WAN Setup and then make the following changes:

  1. Set your Primary DNS server to a public DNS server such as 208.67.222.222. You can also set your Secondary DNS server to a public DNS server such as 208.67.222.220, 4.2.2.1... etc

  2. Make sure your DNS Server Order is set to Manual, DHCP

  3. Set your Primary NTP Server to 0.pool.ntp.org, or your preferred working NTP server. You can also add a Secondary NTP Server if you wish



The time servers indicated in the picture below:

"time.nist.gov" and "time-a.nist.gov" are two primary time servers provided by the US Government for public use. The time server primarily will be used to show the correct time on your phone's caller-id display when you receive a call.



Once done scroll to the bottom of the page and click on Submit All Changes to save your changes. Once the page reloads click on the Voice tab at the top of the page and go to Step 5.

STEP 5

Click on the tab labeled SIP from the menu at the top. You will be provided with the various low level SIP protocol and codec related options we will need to change in order to make sure your device is configured properly.

You will want to set the following options:

RTP Packet Size 0.020
G729b Codec Name G729
G729a Codec Name G729




Click the Submit all changes button after you have finished entering all information on the SIP page.

STEP 6

This is the last configuration step of this guide. Here you will configure additional settings specific to your Callcentric account which will enable you to register your SPA3102 to Callcentric. To being click on the Line 1 option:

SIP SETTINGS
SIP Remote Party ID:No

PROXY AND REGISTRATION
Proxy:sip.callcentric.net
Outbound Proxy:sip.callcentric.net
Use Outbound Proxy:yes
Use DNS SRV:yes
DNS SRV Auto Prefix:yes
Proxy Redundancy Method:Based on SRV Port

SUBSCRIBER INFORMATION
Display Name:Enter your name in this field
User ID: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.
Use Auth ID:yes
Auth ID: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.

AUDIO CONFIGURATION
Preferred Codec:G729a
DTMF Tx MethodAuto
Use Preferred Codec Only:No

DIAL PLAN
Within the Dial Plan delete ALL of the current setting and replace it with the following by copying the text below and pasting it into the Dial Plan field:
(*xx.|*xxx|*75xx|[3469]11|0|00|1xxx[2-9]xxxxxxS0|xxxxxxxxxxxx.|**275*x.)


Click the Save Settings button after you have finished entering all information on the Line 1 page.

Click here to see the screenshot

You should now be registered to Callcentric and your Voice Info page should now say Registered:


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
Or
011 + the country code, area code, and number for calls worldwide (you may also use 00 instead of 011).