VOLUNTEER -with the M MINNESOTA SENIOR LINKAGE LINE Help older adults and caregivers in your community by volunteering with the Senior LinkAge Line. Call to find out how you can help. 800-333-2433 VOLUNTEER -with the M MINNESOTA SENIOR LINKAGE LINE Help older adults and caregivers in your community by volunteering with the Senior LinkAge Line . Call to find out how you can help . 800-333-2433