Daniel Mariani and Zaina Parekh were among the 17 taking part in the six-month training program.
The Avaya Academy program includes working in various roles across the EMEA and APAC regions, supporting the company's sales, engineering and marketing organisations.
Those who complete the program become fully-fledged Avaya employees.
"I welcome our new recruits into the Avaya workforce, and thank them for entrusting us with their future. Over the last six months, these 17 talented men and women have already made an impression on everyone who has worked with them, and I'm truly excited about the passion, determination and raw ability that they will bring to bear at Avaya," said Avaya International president Nidal Abou-Ltaif.
The number of people in each intake varies on the number of roles to be filled. There were 50 in the first intake, and the next cohort will be somewhere between 17 and 50, according to an Avaya spokesperson.
Successful applicants are generally aged in their 20s and typically have one or two years' experience.
As Academy training has been accelerated from a year to six months, Avaya can now run two intakes a year if there are sufficient positions to be filled.