Configuration Guide — 8341B DSP-1282 & DSP-1283: SIP Endpoint with Mitel 8.0 PR3 • 27
Mitel: SIP Peer Profile - SignalingandHeader Manipulation Tab
7. IntheSignalingandHeader Manipulationtab,dothefollowing:
a. SelectYesfor AllowDisplayUpdate.
b. SelectNofor RequireReliableProvisionalResponsesonOutgoingCalls.
8. Leaveallothertabs atthedefaultvalues.