Is it allowed for someone to get married over the phone according to Islam?
In the Name of Allāh, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
Nikah conducted over the telephone is not permissible since it does not fulfill the criteria of a valid marriage according to Islam.
In order for nikah to take place and be valid, both ijaab (the proposal) and qabool (the acceptance) must take place in the presence of at least two witnesses. These witnesses must be at least two Muslim, sane, mature male witnesses or one male and two female witnesses. Even if the witnesses are present at the nikah, they will not be there to physically witness both the proposal and acceptance.
If you are in a real desperate situation, then an alternative is for you, the groom, to appoint someone else as an agent to physically go to the bride’s family on your behalf to contract the marriage and to pronounce the proposal and acceptance on your behalf in front of the witnesses.
And Allāh knows best.