Bam Margera's Estranged Wife Nikki Gets Temporary Custody of Son Phoenix

Bam Margera's got an avenue to maintain a relationship with his son ... but it looks like the former "Jackass" star will have to settle for FaceTime calls with Phoenix, at least for now.

According to new legal docs, obtained by TMZ, Bam's estranged wife Nikki is getting sole legal and physical custody of their 5-year-old boy for the time being, while Bam's being limited to FaceTime visits.

The judge's ruling came down Tuesday ... Nikki was physically in court and Bam appeared via video conference, a foreshadowing of his upcoming interactions with Phoenix.

Remember ... Bam was requesting joint legal and physical custody of Phoenix, asking for overnight stays with his son every other weekend and accusing Nikki of doing everything she can to keep the boy away from him.

For now, Bam's only being allowed to see Phoenix over FaceTime via 20-minute calls on Mondays, Wednesday and Fridays, plus 30-minute calls on Sundays. Nikki's not allowed to monitor the calls.

Bam and Nikki are due back in court in a few months, so it seems this will be the status quo until then. As we reported, Bam was taken into custody Wednesday morning in a suburb just outside of Philly, being cited for public intoxication.

Sources told us officers saw him arguing loudly with a woman outside a hotel, and claimed he smelled like booze and was slurring his speech.