Monday, August 25, 2008

VOIP Fundamentals Lab 1 - PSTN Setup

Scenario Background
Ballplayers, Inc. is a sports marketing firm with locations in New York City, NY and Baltimore, MD. The firm represents both current and retired athletes and their associated marketing ventures. The CIO of the firm, Fuzzy Dunlop, has instructed you to begin piloting VOIP between the NY and Baltimore sites.

VOIP Lab 1 – PSTN Setup
You’ve have been given two Cisco ISR 2801 routers to stage a pilot. Lab 1 involves preparing the Adtran for support the lab depicted below.

Task 1.1 – Initial Adtran Atlas 550 Setup

1. Using a terminal emulation program such as HyperTerminal or SecureCRT, configure the settings for 9600 data rate, no parity, 8 data bits, 1 stop bit, and no flow control.

2. Connect to the Adtran Atlas 550. The console port (Adtran calls it “Craft Port) requires a special pinout DN9. I did not know this when I initially purchased the box off of eBay. I spend a few nights playing with my SecureCRT setting and HyperTerminal. Finally, after some research, I discovered the requirement for this proprietary cable. Errr…..

3. I’ve opted to set up Telnet on the Adtran. That way, from the comfort of my home office (or via VPN for that matter), I can hit the box in my basement. To assign the Adtran Atlas an IP, use your arrow key to move down to Router, press Enter, and then Enter again on IP.

4. From IP, expand the Interface menu. Again, use your arrow keys to select Interface[1]. You can scroll over and modify each entry. In my case, I set the IP address as and the Subnet Mask as

5. Using your arrow keys, go back, select Global, and modify the default gateway, which in my case is Vola! Telnet is already enabled by default on the box.

Task 1.2 –Adtran Atlas 550 Dial-Plan Setup.

1. For this lab, the following numbers will be assigned:

  • Adtran FXS 3/1: R5-Baltimore FXO 0/0/0, 410-555-5001

  • Adtran FXS 3/2: R5-Baltimore FXO 0/0/1, 410-555-5002

  • Adtran FXS 3/3: R6-NewYork FXO 0/0/0, 212-555-6001

  • Adtran FXS 3/4: R6-NewYork FXO 0/0/1, 212-555-6002

  • Adtran FXS 3/5: PSTN Baltimore, 410-555-5555

  • Adtran FXS 3/6: PSTN New York, 212-555-6666
2. In order to support a 10-digit dial plan, the default Global Parameters need to be modified. From the main menu, scroll down to Dial Plan, and then over Global Param and press Enter.

3. From here, select Number Complete Templates.

4, Expanded the Number Complete Template, and modify the seven-digit dial to support ten-digit dial.

5. Next, select the Type Templates and modify the seven-digit Local number type to ten-digit dial.

6. You are now ready to modify the dial plan. Let’s start by heading back on the Adtran Atlas menu and selecting the User Term screen under the Dial Plan menu.

7. We’ll begin by modifying the In#Accept for FXS 3/1. Use the arrow key to highlight the In#Accept for FXS 3/1 and hit Enter. From the Incoming Number Accept List, once again use the arrow keys to highlight the Accept Number option and hit enter. You can now modify the ten-digit number for the port, in this case, 410-555-5001.

8. We will now modify the call-id setting by using are arrow keys to select Interface Configuration. From there, we modify the Caller ID Number to match the Accept Number previously configured. A little farther down, we will modify ANI to Caller ID setting to Enable.

9. At this point, the first FXS port on the Adtran has been properly configured. The process is repeated for the remaining dial numbers. Upon completion, you can test the configuration by attaching analog phone to each configured port and dialing the numbers accordingly.

After successful completion, it is time to begin working on some basic VoIP labs. I will save the PRI configuration, which is very similar, for a later time.


Jim said...

I am planning on purchasing Adtran550 but not sure of which modules are required to simulate the WAN/PSTN for the voice.

Any help will be appreciated.


Mark G. Reyero said...

You may want to check out Adtran's website. Depending on your budget, you'll likely want some PRI and FXS.

ATLAS 550 Dual T1/PRI Module, Part Number: 1200314E2

ATLAS 550 Octal FXS Module, Part Number: 1200309E1

Pink_Floyd said...

Hi Jim,

I bought an Adtran Atlas 550 with the ports you mentioned and configured the system per instructions. When I connected my phone over to say port 1, I should be getting a dial tone right.

I am trying to simulate a scenario where I can remote in to the AUX port on my terminal server to simulate out-of-band recovery.

- Pink_Floyd

Mark G. Reyero said...

Yes, if you plug an analog phone into the FXS ports on your Adtran, you should be receiving dialtone.

Fai said...

I read some of your post and found out it is very interesting, so I bought an Adtran 550 from ebay and try to follow your lab.But I have no idea how to reset the password of the adtran 550, I can telnet it and enter the default 'password' but not success, also I don't have the special craft cable... the seller only shipped me a db9 to rj45 cisco console cable.... any idea how to reset the adtran 550 to factory default or reset password ? As I search around the web and adtran web site no such information at all.


Mark G. Reyero said...

Hello Fai,

You may want to try to contact Adtran directly. I have never dealt with them personally, but I understand that their tech support is very helpful. Good luck!

Fai said...

Thanks Mark,
I called Adtran and they are very friendly and helpful. Now I can use the atlas 550


Chema said...

I also plan to buy an Atlas 550, but it seems impossible to buy a cheap E1 interface anywere...

Anonymous said...

Hi Mark,
Can you please make a list, what are components to make home lab for CVOICE?


Mark G. Reyero said...

My lab components are outlined on an earlier blog posting. If you decide to build your own home lab, I would suggested reviewing the CCIE Voice Equipment list and try replicating that, based on your budget.

Anonymous said...

Hi Mark,

I am having the same setup as yours. Unfortunately, I am not able to get it up and running due to what I belived that the adtran 550 T1 module is faulty. This is because as soon as i finished configuring all the settings as you showed and both the T1 module Error and Alarm LED starting to flashing red. Also, before configuring adding the interface to dial plan, the module status shows everything is online and ok. Do you have any idea how this may happen?



Mark G. Reyero said...

Nate, unfortunately I am no longer studying for my CCIE Voice, since I have a new job role.