Anyone with the same experience? Thanks po

My EDD is on October but my hubby will be home next year. We want the baby to use his surname but he's not around pa and not that easy to reach since he's working on a cruiseship. Regarding sa SSS in claiming benefits, kailangan registered na ang birth certificate? But is there a case na, my baby can use his father's surname and register his birthcertificate, kahit verbal consent lang? I mean no written consent or any proof. Thanks.