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The Excel platform supports delayed media to allow interworking with third party call control applications (3PCC).
• Delayed media is implemented for inbound calls. That is, the Excel platform can accept a delayed media call but does not generate one.
• The Excel platform accepts INVITE messages with SDP or without SDP or with held SDP.
• The Excel platform accepts SDP in the positive ACK message.
• Delayed media is not supported for bearer-free calls. It is supported for bearer calls only.