Business Phone Systems: AI Visibility Market Discovery Index

Benchmark Summary

Questions This Section Answers

• Which brand led the Business Phone Systems benchmark in October 2026, and by how much?
• Which brands declined beyond normal month-to-month variation since July 2026?

RingCentral led the Business Phone Systems benchmark in October 2026 with 75.2% valid recommendation coverage, ahead of Nextiva at 71.8%, a gap of 3.4 percentage points. The largest coverage increase this month came from Nextiva, which rose from 65.9% in September 2026 to 71.8% in October 2026, while the largest decline came from Dialpad Meetings, which fell from 27.4% in September 2026 to 20.6% in October 2026. Four brands declined beyond normal month-to-month variation across the series since July 2026: Dialpad Meetings, GoTo Meeting, Grasshopper, and Microsoft Teams.

Across the full baseline-to-current series, RingCentral moved from 71.3% in July 2026 to 75.2% in October 2026, a change within normal variation, and held the category lead in every measured month. Nextiva rose from 67.9% in July 2026 to 71.8% in October 2026, also within normal variation, while recording a two-month increase. Dialpad Meetings fell from 33.7% in July 2026 to 20.6% in October 2026, a decline beyond normal variation that appeared in each of the two most recent months. Grasshopper declined from 33.1% in July 2026 to 24.8% in October 2026, a drop beyond normal variation that extended across three consecutive months. GoTo Meeting fell from 4.9% in July 2026 to 1.8% in October 2026, also beyond normal variation.

The benchmark began with 800 prompt-surface observations in each month and produced 669 qualified observations in October 2026 after qualification.

Current Benchmark at a Glance

Qualified surface breadth counts the number of canonical AI/search surface families, out of six, with at least one qualified observation: ChatGPT, Copilot, Gemini, Perplexity, AI Overviews, and AI Mode. August 2026 and September 2026 each recorded 665 and 669 qualified observations respectively, both within normal range of the current month.

For the strategic interpretation of this benchmark, read CiteWorks Studio's analysis of How AI Search Is Recommending Business Phone Systems

Research Scope and Qualification

The public benchmark is narrower than the raw collection universe by design. The funnel below shows how raw prompt-surface observations became the qualified benchmark denominator.

Brand-level percentages use the qualified observations as the public denominator, not the raw collection. See the AI Visibility Market Discovery Methodology.

Current Brand Standings

Questions This Section Answers

• Which brands had the highest valid recommendation coverage in October 2026?
• How do presence rate, top-three rate, and rank-one rate distinguish the leading brands?

The table below shows the primary current-month benchmark view, sorted by valid recommendation coverage.

How to Read the Standings

• Presence rate: share of qualified observations where the brand is mentioned at least once.
• Valid recommendation coverage: share of qualified observations where the brand appears in a valid recommendation shortlist.
• Top-three rate: share of qualified observations where the brand appears in one of the top three recommended positions.
• Rank-one rate: share of qualified observations where the brand is the first recommendation.
• Net sentiment: positive minus negative sentiment among mentions of the brand, scaled.

For formulas and denominator rules, see AI Visibility Market Discovery Metric Definitions.

Recommendation Coverage Movement

Questions This Section Answers

• Which brands recorded the largest recommendation coverage increase and decline since July 2026?
• Which movements were beyond normal variation, and which stayed within it?

Three additional brands recorded significant month-over-month moves between September 2026 and October 2026: 8x8 rose from 19.0% to 23.9%, RingCentral rose from 70.4% to 75.2%, and GoTo Meeting fell from 4.2% to 1.8%.

Largest Increase: Nextiva

Nextiva's valid recommendation coverage rose from 67.9% in July 2026 to 71.8% in October 2026, up 3.9 percentage points, a move within normal variation across the full series. The brand recorded a second consecutive monthly increase, climbing from 65.9% in September 2026 to 71.8% in October 2026, a change beyond normal month-to-month variation. Presence rose from 87.3% in July 2026 to 90.9% in October 2026, and the top-three rate moved from 44.0% to 54.9% over the same period.

Largest Decline: Dialpad Meetings

Dialpad Meetings' valid recommendation coverage fell from 33.7% in July 2026 to 20.6% in October 2026, down 13.1 percentage points beyond normal variation. The decline appeared in each of the two most recent months, dropping from 27.4% in September 2026 to 20.6% in October 2026. Presence fell from 39.7% in July 2026 to 23.8% in October 2026, while the rank-one rate fell from 0.7% to 0.0%.

Category Leader: RingCentral

RingCentral led the category with 75.2% valid recommendation coverage in October 2026, up from 71.3% in July 2026, a gain of 3.9 percentage points within normal variation. The leader also recorded a second consecutive monthly increase, moving from 70.4% in September 2026 to 75.2% in October 2026, a change beyond normal month-to-month variation. The top-three rate rose from 56.2% to 64.7%, and the rank-one rate rose from 37.1% to 44.7% over the series.

Watch Item: Vonage

Vonage declined in each of the three months since July 2026, moving from 32.2% in July 2026 to 30.3% in October 2026. The cumulative change of 1.9 percentage points remains within normal variation and is not yet a trend.

Declining Brands: Grasshopper

Grasshopper's valid recommendation coverage fell from 33.1% in July 2026 to 24.8% in October 2026, down 8.3 percentage points beyond normal variation, declining in each of three consecutive months. Presence fell from 40.1% to 30.8% over the same period.

Recommendation Placement Snapshot

Questions This Section Answers

• How do RingCentral, Nextiva, and Zoom Phone differ on top-three and rank-one placement?
• What does the gap between coverage and first-position rate reveal about the leading brands?

Coverage alone does not show how prominently a brand is recommended. The leading brands show meaningful differences in how often they appear in the first position.

RingCentral and Nextiva sit roughly 10 points apart on top-three rate in October 2026, yet RingCentral's rank-one rate of 44.7% is more than four times Nextiva's 10.5%, showing that similar coverage can still hide different first-position rates.

Buyer-Intent Distribution

Questions This Section Answers

• Which buyer-intent class contains all qualified observations in the benchmark?

All qualified observations in both months fell into the Brand Recommendation class, which captures discovery and consideration questions.

The current public series measures the Brand Recommendation class of discovery and does not yet contain qualified observations in the empty classes.

Historical Measurement Record

This is an evergreen benchmark URL. New measurements are added to the same report.

Evidence and Source Layer

The benchmark is built from prompt-level observations that retain the query, AI/search surface, answer, brand outcome, recommendation placement, sentiment, and, where exposed, citations or attributable evidence sources. Source presence is evidence about the information environment. It is not automatically proof that the source caused the recommendation.

Scope Boundaries

This public benchmark does not measure:

• Market share or actual purchase behavior.
• Attributable sales, revenue, or closed deals.
• Every possible AI response; it captures a structured sample of surfaces and queries.
• Organic-search ranking outside AI-generated answers.
• Social mention volume or sentiment on social platforms.
• Private or sponsored channels, including internal or gated AI tools.
• Causality from a metric movement alone; movements are recorded as observations, not explanations.

Top 10 Cited Domains

Questions This Section Answers

• Which domains were cited most often in AI platform responses in October 2026?
• How concentrated are citations across domains, and which tracked brand domains appear in the top 10?

Across all AI platform responses in October 2026, the benchmark observed 6,622 citations drawn from 889 unique domains.

Citations are broadly distributed rather than concentrated: the top 10 domains account for 2,336 of 6,622 citations, or roughly 35% of the total, across 889 unique domains. Three tracked brands' own domains appear in the top 10 (nextiva.com at rank 3, ringcentral.com at rank 6, and vonage.com at rank 7), alongside a mix of review and comparison sites (pcmag.com, getvoip.com, technologyadvice.com), community platforms (reddit.com), and general video and search destinations (youtube.com, google.com).

About This Benchmark

The LLM Authority Index AI Visibility Market Discovery Index tracks how AI search and chat surfaces present brands across verticals. Each monthly measurement samples prompt-surface observations, classifies them by buyer intent, and reports brand presence, recommendation coverage, placement, and sentiment.

• AI Visibility Market Discovery Methodology
• AI Visibility Market Discovery Metric Definitions
• AI Visibility Market Discovery Research Standards
• Modeled AI Visibility Authority Value

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