Is the transition to telephony justified?

Question

Telephony

Hello. I need advice, I work as a system administrator.
There was an offer from one telephone provider to get a job as a telephony engineer. they have ip telephony, sip, some other protocols, everything is on Linux, you need to service all this economy, give requests to repairmen, prescribe routes, in short, there is a whole zoo of everything you can think of.
has anyone had experience transitioning to telephony from regular admins, like swimming? what good / bad can you say, is the work itself stressful, what interesting things did you pick up?
and in general, the direction of telephony is in demand in the future, because. There are no vacancies in our city except for this office, and as I understand it, the direction is narrow. can there be problems with finding a job later due to narrow knowledge?

Answer 1

Not justified, the area is very narrow with a large number of pitfalls and vendor specifics (knowledge of asterisk will not give you anything for cisco or panasonic).
Only large operators have such work, for everyone else this is a side direction for an admin or network engineer.