B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
20
20 -- simultaneous call capacity for typical SIP/PBX server (2026)
A typical SIP/PBX server can sustain only 20 simultaneous calls to maintain a mean jitter level below 100ms.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
20
Unit
Count
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
StarTrinity
Primary
Tier C
https://arphost.com/voip-and-pbx/ ↗
Source Article
VoIP and PBX a Modern Business Communications Guide
Original Research
StarTrinity
· Original study ↗
Methodology
Cited from StarTrinity SIP/PBX testing
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
typical SIP/PBX server: 20 simultaneous call capacity. Source: StarTrinity (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/sip-pbx-simultaneous-calls-jitter
HTML Embed
<blockquote cite="https://lighthousedata.io/data/sip-pbx-simultaneous-calls-jitter" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>20</strong> -- simultaneous call capacity for typical SIP/PBX server<br><small>Source: StarTrinity (2026) · <a href="https://lighthousedata.io/data/sip-pbx-simultaneous-calls-jitter" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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