Question

我正在使用pjproject 2.7.2，它工作正常，但是我有一个问题。我设置了一个呼叫，然后发送了另一个邀请，该邀请的属性无效。 PjSip回答为200OK，正确，但SDP信息不完整。

邀请：

Session Description Protocol
            Session Description Protocol Version (v): 0
            Owner/Creator, Session Id (o): - 2351622143 2351622137 IN IP4 10.17.87.101
            Session Name (s): sessionDescription
            Connection Information (c): IN IP4 10.17.87.101
            Time Description, active time (t): 0 0
            Media Description, name and address (m): audio 5000 RTP/AVP 8
            Connection Information (c): IN IP4 127.0.0.1
            Media Attribute (a): label:SDPlabelCtrl
            Media Attribute (a): inactive
            Media Attribute (a): rtpmap:8 PCMA/8000
            Media Description, name and address (m): audio 0 RTP/AVP 8
            Connection Information (c): IN IP4 127.0.0.1
            Media Attribute (a): label:SDPlabelCall_1
            Media Attribute (a): inactive
            Media Attribute (a): rtpmap:8 PCMA/800

SIP OK：

v=0
o=- 3753002766 3753002774 IN IP4 10.17.87.201
s=pjmedia
b=AS:84
t=0 0
a=X-nat:0
m=audio 2000 RTP/AVP 8
c=IN IP4 10.17.87.201
b=TIAS:64000
a=rtcp:2001 IN IP4 10.17.87.201
a=rtpmap:8 PCMA/8000
a=label:SDPlabelCtrl
a=inactive
m=audio 0 RTP/AVP 8
c=IN IP4 127.0.0.1

因此在200ok中缺少标签SDPlabelCall_1。有什么简单的方法可以在pjproject中添加它吗？谢谢 BR 哈拉尔德

邀请后SIP OK中缺少SDP信息

0 个答案: