I really missed the good ol' days where, if you had the right feature phone, you could pay VZN $3-4 dollars to put a song on it. /s
I think the parent was implying that large telco interests have a dubious track record when it comes to the balance between investing in capacity vs. rent-seeking.
You couldn't connect a phone to Verizon's network unless Verizon sold it to you.
The phones they sold had the firmware configured to prohibit adding content from any source other than their store, which sold it at an extremely high cost.