Each crisis line could be different. Mainly people try to talk to you and get you back to a grounded place where you can cope with life again and are not contemplating self injury.

You also might consider as part of your safety plan to PM a Community Liason that is online (the green person lower left corner under the name and mood - pink is offline) PC wants to help you before you get in a crisis, although I respect your interest in having phone numbers of crisis centers for emergencies.

Please also consult you pdoc and therapist if you find self injuring thoughts to be filling your head or being a threat to you. Some medications may have to be changed with that condition, so let your pdoc or therapist know.