pref_tunnel_key pref_tunnel_mode_key disabled 3G_only always @string/tunnel_mode_entry_value_disabled @string/tunnel_mode_entry_value_3G_only @string/tunnel_mode_entry_value_always @string/tunnel_mode_entry_value_auto pref_tunnel_host_key pref_tunnel_port_key auto pref_audio_use_specific_mode_key pref_audio_hacks_use_galaxys_hack_key pref_audio_hacks_use_routing_api_key pref_audio_soft_volume_key pref_ipv6_key pref_transport_udp_key pref_transport_tcp_key pref_transport_tls_key pref_transport_use_standard_ports_key pref_echo_canceller_calibration_key pref_echo_limiter_key pref_prefix_key pref_proxy_key pref_domain_key pref_passwd_key pref_username_key pref_debug_key first_launch_suceeded_once_key pref_video_use_front_camera_key pref_video_codec_h263_key pref_video_codec_mpeg4_key pref_video_codec_h264_key pref_video_automatically_share_my_video_key pref_video_initiate_call_with_video_key pref_video_enable_key pref_escape_plus_key pref_echo_cancellation_key pref_autostart_key Outbound proxy pref_codec_pcma_key pref_codec_pcmu_key pref_codec_gsm_key pref_codec_g722_key pref_codec_amr_key pref_codec_amrwb_key pref_codec_ilbc_key pref_codec_speex8_key pref_codec_speex16_key pref_codec_speex32_key pref_codec_silk8_key pref_codec_silk12_key pref_codec_silk16_key pref_codec_silk24_key pref_codecs_key pref_stun_server_key pref_video_codec_vp8_key pref_media_encryption_key none srtp zrtp