Consider the following scenario:
- You deploy Enhanced 9-1-1 (E9-1-1) in a Microsoft Lync Server environment.
- You configure a notification Uniform Resource Identifier (URI) with a distribution list (DL) to receive Instant messaging (IM) notifications when emergency calls are made.
- A user makes an emergency call from Microsoft Lync Phone Edition such as from a Polycom CX600 Desktop Phone.
In this scenario, no IM notification is sent to the DL as expected.
To work around this issue, configure the notification URI to a list of users instead of to a DL.