What steps should you take in talking a SM out of a suicide over the phone?

SUICIDAL THOUGHTS ARE AN EMERGENCY OFTEN REQUIRING HOSPITALIZATION

UNLESS YOU ARE PROFESSIONALLY TRAINED DO NOT TRY TO MANAGE WITHOUT ENGAGING PROFESSIONAL MEDICAL, PSYCHIATRIC, AND/OR SECURITY SERVICES

Gradually establish rapport, gradually identify person, gradually identify location, gradually assess the cause and seriousness of the threat, identify with sentiments about the cause . . . explore alternatives . . . quietly brief the first responders re person, location, and context . . . keep them talking while first responders proceed to location. Here are helpful resources . . .

o Veterans Crisis Line: [login to see]
o Military Sexual Trauma Crisis Line: [login to see]
o National Suicide Prevention Lifeline (available 24/7): 1-800-273-TALK (8255)

Google "talking a person out of suicide"

If they are in the area, keep them talking and meet them in person. If you can't meet them try to have someone else. Most suicides happen when an individual is alone and doesn't have to think about the impact their actions have on others. Having someone there with them can prevent this and at least buy some time to get professional help.

The problem with the training we have had is that we've all had it. When a suicidal service member hears the familiar phrases, they recognize it and it makes it sound canned and insincere.
To me, what has allowed me to be successful when faced with this is being able to establish not only rapport, but that I really genuinely care. Many suicidal people get there because they think no one does. Once, that meant driving halfway across Wisconsin in the middle of the work day. Another time, it was leaving in the middle of the night to find the Soldier wandering around downtown Minneapolis. Caring is a state of being, it is an action.
There are few things more discouraging than getting the impression that you are inconveniencing someone that is saying they want to help. Don't ever let them think that is the case.