Overview Leaderboard Methodology
Industry Report

Cloud Telephony Services

Hosted voice and SIP trunking services that provide scalable phone infrastructure, call recording, and integration with business applications.

Brands tracked: 37
Brands analyzed: 37
Last updated: 2026-04-22
Model: OpenAI GPT-5
Prompts: 287
Total responses: 1,470
Top Brand Overall?
Nextiva
40/100

Highest overall AI Visibility Score in this industry.

LBA Leader?
Genesys
91

Highest score on the LBA metric.

Authority Leader?
Twilio
42

Highest score on the Authority metric.

TOM Leader?
Nextiva
76

Highest score on the TOM metric.

Cloud Telephony Services is a highly fragmented category in AI responses

Even the top-ranked brand (Nextiva at 40/100) is mentioned inconsistently when users ask AI assistants about Cloud Telephony Services. Only 1 brand in this category scored above 40. Categories often land here for two reasons: the space is dominated by local or niche players no single AI model has strong training on, or it's a services-heavy category (agencies, consultants) where AI assistants tend not to name specific brands regardless of reputation.

Brand Leaderboard All 37 Cloud Telephony Services brands ranked

Ranked by overall AI Visibility Score (geometric mean of LBA, Authority, and TOM). Click any brand for the full report.

# Brand LBA Authority TOM Overall
1
Nextiva
nextiva.com
 73
12
76
40
2
Vonage
vonage.com
 71
9
66
35
3
Twilio
twilio.com
 86
42
10
33
4
Aircall
aircall.io
 71
16
16
26
5
Microsoft
microsoft.com
 80
1
41
17
6
Telnyx
telnyx.com
 75
14
3
15
7
Grasshopper
grasshopper.com
 64
2
17
12
8
Genesys
genesys.com
 91
3
6
11
9
Bandwidth
bandwidth.com
 70
5
2
10
10
OpenPhone
openphone.com
 59
2
5
9
11
Five9
five9.com
 78
2
4
8
12
Talkdesk
talkdesk.com
 71
1
3
6
13
CloudTalk
cloudtalk.io
 58
0
9
2
14
GoTo
goto.com
 68
0
21
2
15
Ooma Office
ooma.com
 56
0
26
2
16
CallTower
calltower.com
 61
0
0
1
17
Flowroute
flowroute.com
 51
0
1
1
18
Fusion Connect
fusionconnect.com
 35
0
1
1
19
JustCall
justcall.io
 67
0
1
1
20
Plivo
plivo.com
 63
0
1
1
21
8x8 Meet
8x8.com
 49
0
0
0
22
Broadvoice
broadvoice.com
 50
0
0
0
23
ClearlyIP
clearlyip.com
 28
0
0
0
24
Dialpad Sell
dialpad.com
 63
0
0
0
25
Intermedia AnyMeeting
intermedia.com
 41
0
0
0
26
Momentum
gomomentum.com
 27
0
0
0
27
Natterbox
natterbox.com
 37
0
0
0
28
net2phone
net2phone.com
 54
0
0
0
29
NUACOM
nuacom.com
 33
0
0
0
30
RingCentral Video
ringcentral.com
 61
0
0
0
31
Ringover
ringover.com
 51
0
0
0
32
SIP.US
sip.us
 26
0
0
0
33
VirtualPBX
virtualpbx.com
 60
0
0
0
34
Voiceflex
voiceflex.com
 32
0
0
0
35
VoIPstudio
voipstudio.com
 41
0
0
0
36
Wildix
wildix.com
 47
0
0
0
37
Zoom Workplace
zoom.com
 78
0
0
0

How is this calculated? Methodology

Every brand in this leaderboard is scored against the same set of 287 shared Cloud Telephony Services prompts. The same prompts, same model, same iterations. So differences in scores reflect actual differences in AI visibility, not differences in measurement.

Overall AI Visibility Score
Geometric mean of LBA, Authority and TOM: (LBA × Authority × TOM)^(1/3). Geometric mean is used so that any single weak metric pulls the overall score down, rather than being masked by strength elsewhere.
Shared industry prompts
For Authority and TOM, all brands in the industry are scored against the same 287 category prompts (e.g. "best SEO tools for agencies"). This makes brand-to-brand comparisons valid - everyone faces identical inputs. LBA prompts are per-brand because they ask brand-specific questions.
Latent Brand Association (LBA)
5 brand probes + 1 control prompt, each run 5 times in recall mode (no web search). LBA = quality × meta × stability × share × recognition × 100. Read the full LBA methodology →
LLM Authority
50 organic category prompts (discovery, comparison, problem and transactional intents), each run once in recall mode and once in retrieval mode. Score = frequency × log-decayed prominence × intent weight, then 50/50 averaged across the two modes. Read the full Authority methodology →
Top of Mind (TOM)
15 high-volume discovery prompts (sourced from Keywords Everywhere search-volume data), each run 5 times in pure recall mode (no web). Score = frequency × (0.5 + 0.5 × log-prominence), volume-weighted. Read the full TOM methodology →