/mcp• The ingress call leg is using Delayed Offer while the egress call leg is using Early Offer • The media line has been rejected (port=0) • Either call leg is using a protocol other than SIP SDP Transparency Profile Prerequisites If you plan to deploy any third-party SIP products, make sure that you understand how the products implement the Session Description Protocol (SDP). Configure SDP Transparency Profile Configure a customized SDP Transparency Profile with a set of rules for declarative SDP attributes that are not natively supported by Cisco Unified Communications Manager. Procedure Step 1 From Cisco Unified CM Administration, choose Device > Device Settings > SDP Transparency Profile. Step 2 Click Add New. Step 3 Enter a Name and Description. Step 4 In the Attribute Information pane, create the rules for the SDP attributes that you want to pass through: • To pass through a property attribute, enter the attribute in the Name text box (for example, a=recvonly) and from the Type drop-down list, select Property. • To pass through a value attribute, enter the attribute in the Name text box (for example, a=rtpmap), and select Any Value from the Type drop-down list box. • To pass through a value attribute with any of up to five values, enter the attribute in the Name field (for example, a=rtpmap) and select Any Value from the Type drop-down list. In the resulting Value text box, enter the value of the attribute. You can click + to add up to five possible values for this attribute. Step 5 Click the (+) to create new lines where you can enter additional SDP attributes for this transparency profile. Step 6 Click Save. Note You must apply this profile to a SIP Profile so that the devices that use the SIP Profile can use the SDP Transparency Profile. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 854 SIP Interoperability SDP Transparency Profile Prerequisites