[Freeswitch-users] Monitoring call quality using variable_rtp_audio_xxx

[Jonathan Hunter]

Hi Guys,

Sorry for the noise, we are looking to poll calls in progress to grab the rtp_audio variables when a call is in progress, and we want to understand if this is a good approach and to that end what values/variables we should consider and what ranges should we be working with?

I understand mos and quality percentage but what other values are a good indicator?

Again Im clear on jitter and its meaning just want to understand whats what as not everything understandably is not documented.

Many thanks

Jon

    "variable_rtp_audio_recv_pt": "8",
    "variable_rtp_audio_in_raw_bytes": "374960",
    "variable_rtp_audio_in_media_bytes": "374616",
    "variable_rtp_audio_in_packet_count": "2180",
    "variable_rtp_audio_in_media_packet_count": "2178",
    "variable_rtp_audio_in_skip_packet_count": "92",
    "variable_rtp_audio_in_jitter_packet_count": "0",
    "variable_rtp_audio_in_dtmf_packet_count": "0",
    "variable_rtp_audio_in_cng_packet_count": "0",
    "variable_rtp_audio_in_flush_packet_count": "2",
    "variable_rtp_audio_in_largest_jb_size": "0",
    "variable_rtp_audio_in_jitter_min_variance": "28.57",
    "variable_rtp_audio_in_jitter_max_variance": "116.33",
    "variable_rtp_audio_in_jitter_loss_rate": "0.02",
    "variable_rtp_audio_in_jitter_burst_rate": "0.98",
    "variable_rtp_audio_in_mean_interval": "20.39",
    "variable_rtp_audio_in_flaw_total": "43",
    "variable_rtp_audio_in_quality_percentage": "97.00",
    "variable_rtp_audio_in_mos": "4.47",
    "variable_rtp_audio_out_raw_bytes": "210012",
    "variable_rtp_audio_out_media_bytes": "210012",
    "variable_rtp_audio_out_packet_count": "1221",
    "variable_rtp_audio_out_media_packet_count": "1221",
    "variable_rtp_audio_out_skip_packet_count": "0",
    "variable_rtp_audio_out_dtmf_packet_count": "0",
    "variable_rtp_audio_out_cng_packet_count": "0",
    "variable_rtp_audio_rtcp_packet_count": "0",
    "variable_rtp_audio_rtcp_octet_count": "0",

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