That would be a powerful argument if you could prove the code path enabling this uses Erlang.
According to Wikipedia, shortly after Armstrong was let go of Ericsson, the company quickly ripped out Erlang from all its products and replaced it with C and C++.
> In 1998 Ericsson announced the AXD301 switch, containing over a million lines of Erlang[...].[8] Shortly thereafter, Ericsson Radio Systems banned the in-house use of Erlang for new products, citing a preference for non-proprietary languages. The ban caused Armstrong and others to leave Ericsson.[9] The implementation was open-sourced at the end of the year.[5] Ericsson eventually lifted the ban; it re-hired Armstrong in 2004.[9][...]
> Erlang has now been adopted by companies worldwide, including Nortel and T-Mobile. Erlang is used in Ericsson’s support nodes, and in GPRS, 3G and LTE mobile networks worldwide.[10]
"In 1998 Ericsson announced the AXD301 switch, containing over a million lines of Erlang and reported to achieve a high availability of nine "9"s"
That was the first commercial use of the language. The first commercial use of a 'niche' language, with over a million lines of code, achieved a downtime of just over half a second over 20 years. That's total downtime, too, not just 'unplanned'. And even if you take into account the numbers touted by critics of that quote, of 5 nines...that's still considered world class. For the first damn commercial product.
According to Wikipedia, shortly after Armstrong was let go of Ericsson, the company quickly ripped out Erlang from all its products and replaced it with C and C++.