A fixed hour, the same friend, the phone warm against your ear rather than propped on a table. The standing phone call is twenty minutes, once a week, with someone who knew you before you knew what you were doing. It asks for nothing more than a chair and the willingness to ring at the agreed time, even when there is little to report.
Friendships between men rarely end in a quarrel. They thin out. Messages get shorter, plans get vaguer, and one day a decade has passed between two people who once shared a kitchen. A voice holds what text cannot: the pause before bad news, the laugh that has dropped half a tone over the years, the dog barking behind him, a kettle switching off. You hear how he is before he tells you. Because the call is fixed, nobody has to justify it, and nobody has to be the one who reaches out first.

how to keep the line open
Pick one friend and one slot you can hold almost every week, and treat it like any other appointment. Use a proper call, not a voice note; voice notes are monologues. Sit somewhere quiet, away from the screen. Miss a week and say so, then ring the next. The habit survives skipped calls; it does not survive silence about them.
Message one old friend now with a day and an hour, then keep it.