Diagnostics/Telecom

Telephony, SIP & Media Diagnostics

Dedicated telecom observability — SIP, RTP/media, and carrier analytics. Sensitive SIP fields masked by policy.

SIP success

99.1%

Avg MOS

4.21

Packet loss

0.4%

Masked SIP fields

SIP monitoring

Methods, codes, headers (masked)

Event / code	Count	Status
INVITE	15,420	okok
100 Trying	15,380	okok
180 Ringing	14,200	okok
183 Session Progress	2,100	okok
200 OK	14,150	okok
ACK	14,140	okok
BYE	13,800	okok
CANCEL	420	DegradedDegraded
REFER	890	okok
NOTIFY	1,200	okok
OPTIONS	5,600	okok
Re-INVITE	340	okok
401/407 Auth	48	badbad
403 Forbidden	22	badbad
404 Not Found	65	DegradedDegraded
480 Temp Unavailable	110	DegradedDegraded
486 Busy	280	DegradedDegraded
487 Request Terminated	184	infoinfo
503 Service Unavailable	22	badbad
408 Timeout	9	badbad

SIP anomaly detection

Registration failure

2high

Authentication failure

48medium

Routing failure

12high

Carrier rejection

22high

Number-format error

8low

Codec mismatch

3medium

TLS / certificate failure

1critical

NAT / firewall issue

5medium

Session-timer expiry

4medium

Transfer failure

11high

Missing ACK

2high

SIP retransmission

34medium

SIP loop

0critical

Call setup delay

56medium

RTP & media metrics

Packet loss

0.4%

Healthy

Jitter

18ms

Healthy

Round-trip time

42ms

Healthy

Media latency

65ms

Healthy

Out-of-order packets

0.08%

Healthy

Duplicate packets

0.02%

Healthy

RTP stream interruption

0.3%

Healthy

One-way audio

0.1%

Healthy

No-way audio

0.02%

Healthy

Audio level

-18 dBFS

Healthy

Silence

12%

neutral

Clipping

0.4%

Healthy

Codec

opus

Healthy

Bitrate

32 kbps

Healthy

Sample rate

16 kHz

Healthy

DTMF success

99.2%

Healthy

MOS estimate

4.21

Healthy

R-factor

Healthy

Network path

US-E → edge

neutral

Media-region selection

us-east-1

Healthy

Carrier analytics

ASR, NER, PDD, CCR, ACD, fail rate, quality vs cost — route degradation cues

Carrier	ASR	NER	PDD	CCR	ACD	Fail	Quality	Cost
Twilio	99.4%	98.1%	1.2s	97.8%	4m 08s	1.1%	92	$0.014
Telnyx	99.2%	97.9%	1.1s	97.5%	4m 15s	1.3%	91	$0.011
Vonage	97.1%	95.4%	1.6s	95.2%	3m 55s	2.8%	84	$0.013

Recommendation: Vonage EU shows elevated fail rate and lower quality index — investigate route-specific degradation and compare carrier cost vs quality.