I've never had my 6100 or my 3100 connected to a phone line. I have had these for at least three years, and not a single call, yet.
My 9200 was zapped by lightning (via the phone line) in early June. The only function that went dead was the phone line connectivity (dial out, caller ID). Bell CSR's were convinced that it was a problem with my phone provider (in that caller ID would not work), and were completely and totally unable to determine that the phone line connectivity was completely dead. That is to say that even though my machine would not dial out, and I got a fail indication on the system info screen, and I told them this, they were convinced that it was a problem with MTS. And they confirmed that Bell's "process" to track the receivers out in the field is futile, fruitless, and frustrating.
After an hour on the phone with the front line techs and level three techs, I convinced them that to satisfy their requirement that my 9200 be connected to a phone line, I would need a new 9200. They agreed to replace my out of warranty 9200 for "purely customer satisfaction purposes". The refurb they sent me whined like a loose fan belt. The brnad spanking new unit they sent me to replace the refurb works like a charm. And surprise, the phone can now dial out, and I get caller ID. In short, the 'dial out' process is clearly pointless, and utterly useless to Bell.