true Whether calls should automatically use the default origin Whether calls should automatically use the default origin '' The country code as reported by the modem The country code is used for contact name lookup ["mm", "sip"] The plugins to load automatically These plugins will be automatically loaded on application startup. ["G722", "PCMA", "PCMU", "GSM"] Audio codecs to use for VoIP calls in order of preference The preferred audio codecs to use for VoIP calls (if available) false Whether to allow using SDES for SRTP without TLS as the transport Set to true if you want to allow with keys exchanged in cleartext.