scope:

The present document:

• Assesses the support of Total Conversation for emergency communications by existing specifications, in particular those from 3GPP and IETF.

• Identifies any changes that might be needed to those specifications to support Total Conversation for emergency communications.

• Provides guidance for developers and PSAPs planning to implement Total Conversation for emergency communications, and for users of the Total Conversation service.

The present document covers emergency calls with the full media set of Total Conversation as well as subsets of the media, except voice calls in which no assisting service is needed.

Although the focus of the present document is Total Conversation for emergency communications, no Total Conversation user can be expected to use Total Conversation only for contacting emergency services. Therefore and where applicable, some aspects of use of Total Conversation for non-emergency communications are also covered.