Fix sccp_config_getNthToken

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4940 43c1dc8c-776e-4df2-8ef1-6e829299be21
Show StationIdentifier->userId during register

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4941 43c1dc8c-776e-4df2-8ef1-6e829299be21
check if channel is still alive (state != onhook) on sccp_handle_open_receive_channel_ack

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4942 43c1dc8c-776e-4df2-8ef1-6e829299be21