returns pre-configured xmpp address of sip gateway or null if no info was passed in the config . concode_field_sep Logger logger concode_elem_sep String CHANNEL_LAST_N_PNAME concode_elem_sep String ADAPTIVE_LAST_N_PNAME concode_elem_sep String BRIDGE_PNAME concode_elem_sep String ENABLE_FIREFOX_HACKS_PNAME concode_elem_sep String OPEN_SCTP_PNAME concode_elem_sep String SIP_GATEWAY_PNAME concode_elem_sep Map<String,String> properties concode_elem_sep String ADAPTIVE_SIMULCAST_PNAME concode_field_sep Boolean isAdaptiveLastNEnabled concode_elem_sep Integer getInt concode_elem_sep Integer getChannelLastN concode_elem_sep Boolean enableFirefoxHacks concode_elem_sep Boolean getBoolean concode_elem_sep Boolean openSctp concode_elem_sep String getPreConfiguredVideobridge concode_elem_sep Boolean isAdaptiveSimulcastEnabled
String function ( ) { return properties . get ( SIP_GATEWAY_PNAME ) ; }