Virtual Numbers — Campaign Tracking Numbers & Call Attribution
Assign a unique virtual number to every campaign, ad and channel — then see exactly which one made the phone ring, and route every call to the right team.
Overview
A virtual number is a cloud phone number with no fixed SIM or line behind it — you can provision as many as you need and point them wherever you want. Office24by7 lets you assign dedicated virtual numbers to individual campaigns, ads, landing pages, hoardings or locations, so when a customer calls, you know precisely which source drove that call. It turns your phone channel into a measurable marketing channel with clear attribution.
Virtual numbers do far more than track. They mask agents' personal numbers for privacy, present a single professional identity across a distributed team, record every call, and route incoming calls to the right IVR, queue or agent based on the number dialed. Because each number and its calls live in the CRM, you get campaign-level call reports alongside the leads and conversions they produced — closing the loop between spend and revenue.
Explore Omnichannel Communication →- ✓ Dedicated virtual number per campaign or channel
- ✓ Call attribution shows which ad drove each call
- ✓ Number masking protects agent and customer privacy
- ✓ Route by dialed number to the right IVR or team
- ✓ Record and log every call to the CRM
- ✓ Campaign call reports beside leads and conversions
Everything Virtual Number gives you
Tracking Numbers
Provision unique virtual numbers per campaign, ad, landing page or location for precise attribution.
Call Attribution
See which campaign or source each call came from, so you can compare call ROI across channels.
Number Masking
Hide agent and customer personal numbers behind a virtual number to protect privacy.
Smart Routing
Route calls to a specific IVR, queue or team based on which virtual number was dialed.
Recording & Logs
Record every call on a virtual number and log it against the campaign and contact.
Campaign Reports
View call volume and outcomes per number alongside the leads and conversions they drove.
How the agent works with Virtual Number
The Flow-Cognition Agent runs a real loop on your Virtual Number data — grounded in your records, governed and logged.
Sense
Reads which virtual number each call came in on, plus the caller's history.
Decide
Matches the call to its campaign and picks the right IVR, queue or team.
Act
Routes the call, logs it against the campaign and lead, and flags numbers whose call volume drops.
Every automated action follows your user permissions and is recorded in the audit trail. See the AI layer →
Live in four steps
Provision Numbers
Get dedicated virtual numbers for each campaign, channel or location.
Publish Them
Place each number on its ad, landing page, hoarding or listing.
Route Calls
Point each number to the right IVR, queue or agent team.
Measure Results
Track call volume and conversions per number in campaign reports.
Where teams put it to work
Marketing attribution
A real estate developer runs the same project across Google, a newspaper and a hoarding with three different virtual numbers, and reports show which one generated the most site-visit calls.
Multi-location routing
A chain uses a distinct virtual number per city so calls automatically route to the nearest branch while all activity rolls up to one dashboard.
Agent privacy
A marketplace connects buyers and sellers through a masked number, so their real numbers stay hidden and all calls stay recorded and logged.
The payoff
Prove marketing ROI
Per-campaign numbers reveal exactly which ad and channel drove each call and conversion.
Protect privacy
Masking sits a virtual number between both parties, so personal numbers stay hidden on every recorded call.
One professional identity
A distributed team presents a single consistent number to customers on every call.
Closed-loop reporting
Call data sits beside leads and revenue in the CRM, linking phone activity to outcomes.
Questions, answered
By assigning a unique virtual number to each campaign, ad or channel, every inbound call is attributed to the source the customer dialed from. Reports then show which ad or channel drove the most calls and conversions.
Yes. Each virtual number can point to its own IVR flow, queue or agent team, so a call to your Mumbai number and a call to your festival-campaign number can be handled completely differently.
They do. Number masking places a virtual number between two parties so agents and customers never see each other's real numbers — useful for marketplaces and field teams — while calls stay recorded and logged.
You can add numbers as your campaigns grow and reassign them at any time. Availability depends on the number series and region you choose.
Yes. Every call on a virtual number can be recorded and is logged to the CRM against the relevant campaign and contact, giving you campaign-level call reporting alongside leads and conversions.
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See Virtual Number in your workflow
Start free, or get a guided walkthrough with our team — on the one platform that runs Omnichannel Communication and your whole business.

