Emergency sos call

It is a voice call. So, if you want to give that info to the SOS responder, go ahead.

Use Emergency SOS on your iPhone - Apple Support

Also see:

Emergency SOS & Privacy - Apple Support

"When you use Emergency SOS, your device will attempt to call emergency services. To allow the dispatcher to assist you, this call may include your location, regardless of whether you enable Location Services. Once the call ends, you can choose to notify your emergency contacts with a message that says you have called emergency services. This message also includes your current location. You can manage your emergency contacts by editing your Medical ID in the Health app on iPhone."

I think that depends on the nature of your call for help. You will probably need to give address so emergency responders will know where to go.