Openings at the Alabang site are posted on the company's careers site and on the main Philippine job boards, and recruitment for large sites typically runs continuously rather than in fixed windows.
The standard sequence for a voice role at a site of this scale is an initial screening on English proficiency, an online assessment, one or more operations interviews, and a final offer subject to requirements and background checks. Bring valid identification, your government contribution numbers, and your employment records. If you are asked to return for a further stage, treat that as normal rather than as a negative signal.
Two things reliably help: be specific about which account or skill you are targeting rather than applying generically, and be honest about your shift availability. Overstating your willingness to work graveyard shifts is the single most common reason a promising hire does not last the first month.