In the second edition of S60, SIP is not part of the platform, but the S60 2nd Edition SDK can be used as a supplement to use, and in the S60 third edition of the SIP API is inherited in the Platform. Not compatible with the code allows developers to support all the equipment to develop a SIP client program seems a bit complicated, the actual development, developers need to carry out under different conditions of platform compilation, so to maintain different versions of the code.

Nokia解决方案中文版.chm

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