I use a Landline to answer intercom calls, how do I unlock the door for a visitor? Victoria Wickman March 10, 2023 17:36 Updated Press the number 9 and it will unlock the door. The phone number that the Swiftlane Intercom calls will come from the following number: (240) 709-1512 Related articles How do I send Intercom calls to go to my landline or mobile phone directly without the Swiftlane App How to add a family member/roommate/User? I can't access the Swiftlane app How can I delete a visitor PIN code and create a new one? How do I let my visitor in without a PIN? Comments 0 comments Please sign in to leave a comment.