Welcome To Pizzatel Enterprises New Isp Service
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Service is up; Status Currently Broken - Looking for new Syslog Server

Now Operating!

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Pizzatel Enterprises New Isp Service is a free to use hobby 56k dialup internet service for vintage computer and telephony enthusiasts.

The service uses a voip line through Voip.ms and is reachable through the PSTN.

There is a button at the bottom of the page to check the status of the AS5350 and see your connection being made in real time.

Pizzatel can provide full 56k service and supports multilink connections

What is multilink? Multilink allows you to bond multiple dialup connections into one, faster connection. Voip.ms allows you to make multiple calls through the same number, you just may be billed for each call separately. You need a physical FXS port (phone jack) and modem for each connection.

We have not had much luck with establishing a stable multilink connection over VOIP, but you can give it a try. Between the fragmenting of SIP packets and the fragmenting of the data by multilink, there may just be too much latency.

Multilink connections have a certain amount of diminishing returns, 2 connections gets pretty close to doubling your speed, but 4x connections is more like 3x the speed. The most I have established locally is 6 connections for 303.9k and achieved download speeds of about 22Kb/s, a speed I would have killed for back in the day.

Get Connected
  • PSTN: 231-636-1018 (US/Canada Only)
  • User: dialupuser1 /2 /3 /4
  • Pass: dialup (all users)

interwebs

I'm Connected, Now What?

Modern web is all but unusable on a 56k connection, and any version of windows newer than 7 will saturate a 56k connection with telemetry data. A dialup internet connection is best enjoyed on an older computer setup with a proxy service.

  • Protoweb Proxy is a proxy service restoring internet sites from the 90's and early 2000's
  • TheOldNet is another proxy service similar to above
  • FrogFind is a search engine for old computers powered by DuckDuckGo
  • Wiby.me is a search engine that returns websites that will work on old browsers

Pizzatel Services

How Do I Get a Phone Line?

Pizzatel Dialup ISP uses a voip line through Voip.ms. Voip works just fine for dialup, it just requires some configuration on your ATA device to ensure the line acts more like a traditional POTS line.

Here is an article from CRD on setting up an ATA: Configuring SPA122 ATA for Dial-Through This guide is helpful for most cisco/linksys branded ATAs. In particular, you need to turn off anything to do with fax, noise/echo suppression and cancellation, voice activity detection (VAD), and enforce g711ulaw codec.

If you want to get your own line through Voip.ms, use my referral code and we both get credits: PizzaTel Referral

Calls between Voip.ms customers are totally free. Connect as much and as long as you wish. However, if you are dialing in using a different voip provider or a real POTS line, I'd ask you keep your connection time below 4 hours. Voip.ms allows up to 25 concurrent calls to the same number, so multiple people can be dialed in at once.

Voip.ms has a wiki on setting up an ATA device to use their service here: Voip.ms ATA Devices Wiki

Infrastructure

A Cisco 3825 ISR handles most of the heavy lifting. The 3825 is connected to Voip.ms with a SIP connection. The 3825 creates a T1 connection going to a Cisco AS5350, providing it with 23 usable channels. In addition to that, the 3825 also does routing of devices on the retrorack network (through a 24 port Cisco 2960 PoE switch), runs CME - complete with music on hold - and controls a half dozen Cisco 7965 IP Phones that are scattered around the house.

The 3825 also has 28 FXS ports available (1x 24 port NM card and 1x 4 port VIC card) for playing around with phones and doing dialup locally. It can also do dialup duty on it's own through 2 modem WIC cards, though these are for local use only. All FXS ports and IP Phones can dial out to the PSTN through a second Voip.ms number.

The ASS350 is what you are actually dialing into. It has a FlexDSP modem that can provide up to 60 concurrent 56k connections. It also handles authentication and routing for your device. It was a purpose built device meant for dialup ISPs and telephony providers, though it seems it was not quite as popular as other offerings.