Early Media / Ringback Tone
2017-06-22 11:32:25 0 举报ims early media /Ringback tone
作者其他创作
大纲/内容
180 Ringing
Bearer Establishment for Early Media
200 OK
P-Early-Media: supported
UA2
GW/AS
Early Media(Ringback Tone)
Bearer Establishment for Call Traffic
Bearer Release for Early Media
INVITE
Media Exchange
CSCF
UA1
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