After installing sdk and sip server emulator 2.0 and configuring them, I've done a copy of epoc32 folder to obtain another environment for using and developing sip apps. I have then Epoc1 and Epoc2 for example.
If I try to register with Epoc1 it works well. If I try to register with Epoc2 with Epoc1 already registered, it doesn't work (registration failed).
After that, if I close Epoc1 and retry to register, it fails like Epoc2.
I can't understand what's the matter because I installed sdk and sip server emulator in other machines and they work well.