As you have asked about the BSNL JTO vacancy notification,, I want to tell you that there is no such vacancy notification released by BSNL.
I found following notification listings from its website

Special Recruitment Drive (SRD) for Person with Disabilities (PWD) candidates for the post of Management Trainee in BSNL from External Candidates

-- Special Recruitment Drive (SRD) for SC,ST and OBC candidates for the post of TTA in BSNL from External Candidates

-- Special Recruitment Drive (SRD) for Persons with Disabilities (PWD) candidates for the post of Junior Accounts Officer(JAO) in BSNL

-- Special Recruitment Drive (SRD) for Persons with Disabilities (PWD) candidates for the post of Junior Telecom Officer (Telecom){JTO(T)} in BSNL

-- Special Recruitment Drive (SRD) for Persons with Disabilities (PWD) candidates for the post of Junior Telecom Officer (Civil){JTO(C)} in BSNL

You can also find about the vacancy notifications from BSNL website, by following steps given below
GO to BSNL website.
Then scroll down and click on HRD under About US option, the page open look like



then click on HRD and then on jobs in the left side menu, the page open look like


Here you will find the details regaridng the vacancy notification for JTO when available.