Predictika · Business connectivity quotes

An AI sales agent's Business Internet Fiber quote, checked before it goes out

An AI sales agent prepares a quote for a small business in Belgium that wants a Proximus Business Internet Fiber plan: the plan, whether the address has fiber, the speeds the customer needs, whether the promotional price applies and the data the customer expects to use. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the published plans and conditions and returns a verdict, every reason and the figures it computed.

Scope: Proximus Business Internet Fiber quotes (Go Fiber, Mega Fiber, Giga Fiber): published prices, speeds, fiber eligibility, the promotion for new online subscribers, fair use and stated prices. See everything this validator covers

This validator models single-connection quotes for the three Business Internet Fiber plans as published on the Proximus Business Internet subscription page (read October 6, 2026), not just the scenarios shown below.

  • Plans — Go Fiber (up to 150 Mbps down, 30 Mbps up), Mega Fiber (500 / 250) and Giga Fiber (2.5 Gbps / 500 Mbps), each with its published regular monthly price from month 13 (EUR 60, 65 and 75) and promotional monthly price for the first 12 months (EUR 45, 45 and 55), all excluding VAT. Installation by a technician is listed as included.
  • Checks — the address must be eligible for fiber; the speeds the customer needs cannot exceed the plan's; the promotional price is for new Internet subscribers ordering online during the published promotion period (17 August to 30 September 2026); the stated regular monthly price and first-year total must equal the published ones; a customer expecting more than 6 TB of data a month goes to a person, because Proximus states that speed is reduced from 6 TB until the end of the month unless extra volume is activated and does not publish the price of extra volume.

Any Business Internet Fiber quote that touches these rules is in scope — not only the scenarios pictured here. Not covered: Business Flex+ packs and other bundles, mobile, TV and landline, optional equipment, extra data volume, enterprise and managed network products, SLA options, VAT, and any negotiated discount.

The AI sales agentBuilds the Business Internet Fiber quote from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

7 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
Speed limits that depend on the planOnly with care
Each plan has its own download and upload limit, so a rule per plan and direction works, but they have to be kept in step with the price list.		The speed limits are looked up from the chosen plan and compared with what the customer needs on every call.
A promotion with several conditions at onceOnly with workarounds
New customer, online order and a promotion period are three separate conditions, often handled as one manual check or one flag, so a quote can claim the promotion while failing only one of them.		Each condition is its own blocking finding, so every reason the promotion does not apply comes back together.
A plan that only exists where fiber is availableOnly with care
Availability depends on the address, so the quote needs a flag and a rule that ties the plans to it.		Quoting a fiber plan for an address without fiber is stopped in the same pass as the other rules.
A fair-use thresholdOnly with care
The 6 TB level is a condition on expected usage, not on the product, so it is easy to leave to the sales rep.		Expected data above 6 TB is listed as an approval with the reason, without blocking the rest of the quote.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the quote is saved or a step is completed, so a rep often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1The address is not eligible for fiber; Proximus offers the Business Internet Fiber plans only if the address is eligible for fiber.
2The customer needs 151 Mbps download but the chosen plan offers up to 150 Mbps.
3The customer needs 31 Mbps upload but the chosen plan offers up to 30 Mbps.
4The customer needs 501 Mbps download but the chosen plan offers up to 500 Mbps.
5The customer needs 251 Mbps upload but the chosen plan offers up to 250 Mbps.
6The customer needs 2,501 Mbps download but the chosen plan offers up to 2,500 Mbps.
7The customer needs 501 Mbps upload but the chosen plan offers up to 500 Mbps.
8The quote applies the promotional price, which Proximus states is valid only for new Internet subscribers.
9The quote applies the promotional price, which Proximus states is valid only for orders placed online on the Proximus website.
10The quote applies the promotional price, but the order is outside the published promotion period of 17 August to 30 September 2026.
11The quote states a regular monthly price of EUR 60.00; the published price from month 13 is EUR 65.00.
12The quote states a first-year total of EUR 780.00; the published prices give EUR 540.00.
13The quote states a first-year total of EUR 780.01; the published prices give EUR 780.00.
14The customer expects 7 TB of data a month; Proximus states that speed is reduced from 6 TB until the end of the month unless extra volume is activated, and the extra-volume price is not published, so a person should confirm it.
15The customer needs 300 Mbps upload but the chosen plan offers up to 250 Mbps.
16The customer expects 10 TB of data a month; Proximus states that speed is reduced from 6 TB until the end of the month unless extra volume is activated, and the extra-volume price is not published, so a person should confirm it.
17The customer needs 600 Mbps download but the chosen plan offers up to 150 Mbps.
18The customer needs 60 Mbps upload but the chosen plan offers up to 30 Mbps.
19The quote states a regular monthly price of EUR 0.01; the published price from month 13 is EUR 60.00.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Go Fiber for an existing customer: Go Fiber for an existing customer at an address without fiber, with speed needs above the plan

    
The agent's request. Please quote Business Internet Go Fiber for a existing customer, who needs 400 Mbps download and 60 Mbps upload at an address without fiber, with about 2 TB of data a month. The order is placed online. Apply the promotional price for the first 12 months. The quote states a regular monthly price of EUR 60.00 and a first-year total of EUR 540.00. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Address not eligible for fiber. The address is not eligible for fiber; Proximus offers the Business Internet Fiber plans only if the address is eligible for fiber.
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  • Required download speed above the plan. The customer needs 400 Mbps download but the chosen plan offers up to 150 Mbps.
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  • Required upload speed above the plan. The customer needs 60 Mbps upload but the chosen plan offers up to 30 Mbps.
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  • Promotional price for an existing customer. The quote applies the promotional price, which Proximus states is valid only for new Internet subscribers.
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2. Go Fiber for an existing customer: The agent resubmits after fixing the errors

    
The agent's request. Please quote Business Internet Mega Fiber for a existing customer, who needs 400 Mbps download and 60 Mbps upload at an address with fiber, with about 2 TB of data a month. The order is placed online. The quote states a regular monthly price of EUR 65.00 and a first-year total of EUR 780.00. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Quote summary. Monthly price for the first 12 months EUR 65.00, regular price from month 13 EUR 65.00, first-year total EUR 780.00 (excluding VAT, technician installation included).
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3. Mega Fiber order by phone: Mega Fiber promotion on a phone order with an upload need above the plan and a wrong first-year total

    
The agent's request. Please quote Business Internet Mega Fiber for a new customer, who needs 450 Mbps download and 300 Mbps upload at an address with fiber, with about 3 TB of data a month. The order is placed by phone. Apply the promotional price for the first 12 months. The quote states a regular monthly price of EUR 65.00 and a first-year total of EUR 780.00. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Required upload speed above the plan. The customer needs 300 Mbps upload but the chosen plan offers up to 250 Mbps.
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  • Promotional price on an order not placed online. The quote applies the promotional price, which Proximus states is valid only for orders placed online on the Proximus website.
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  • Stated first-year total does not match. The quote states a first-year total of EUR 780.00; the published prices give EUR 540.00.
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4. Mega Fiber order by phone: The agent resubmits after fixing the errors

    
The agent's request. Please quote Business Internet Mega Fiber for a new customer, who needs 450 Mbps download and 300 Mbps upload at an address with fiber, with about 3 TB of data a month. The order is placed online. Apply the promotional price for the first 12 months. The quote states a regular monthly price of EUR 65.00 and a first-year total of EUR 540.00. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Required upload speed above the plan. The customer needs 300 Mbps upload but the chosen plan offers up to 250 Mbps.
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5. Mega Fiber order by phone: The agent resubmits after fixing the errors

    
The agent's request. Please quote Business Internet Giga Fiber for a new customer, who needs 450 Mbps download and 300 Mbps upload at an address with fiber, with about 3 TB of data a month. The order is placed online. Apply the promotional price for the first 12 months. The quote states a regular monthly price of EUR 75.00 and a first-year total of EUR 660.00. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Quote summary. Monthly price for the first 12 months EUR 55.00, regular price from month 13 EUR 75.00, first-year total EUR 660.00 (excluding VAT, technician installation included).
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6. Heavy data use: Giga Fiber with 8 TB of data a month

    
The agent's request. Please quote Business Internet Giga Fiber for a new customer, who needs 2000 Mbps download and 300 Mbps upload at an address with fiber, with about 8 TB of data a month. The order is placed online. Apply the promotional price for the first 12 months. The quote states a regular monthly price of EUR 75.00 and a first-year total of EUR 660.00. It is ready to send.

    
Verdict: Needs approval.

    
    
      
  • Data volume above the fair-use level. The customer expects 8 TB of data a month; Proximus states that speed is reduced from 6 TB until the end of the month unless extra volume is activated, and the extra-volume price is not published, so a person should confirm it.
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  • Quote summary. Monthly price for the first 12 months EUR 55.00, regular price from month 13 EUR 75.00, first-year total EUR 660.00 (excluding VAT, technician installation included).
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7. Heavy data use: The agent resubmits after fixing the errors

    
The agent's request. Please quote Business Internet Giga Fiber for a new customer, who needs 2000 Mbps download and 300 Mbps upload at an address with fiber, with about 5 TB of data a month. The order is placed online. Apply the promotional price for the first 12 months. The quote states a regular monthly price of EUR 75.00 and a first-year total of EUR 660.00. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Quote summary. Monthly price for the first 12 months EUR 55.00, regular price from month 13 EUR 75.00, first-year total EUR 660.00 (excluding VAT, technician installation included).
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares a quote for a small business in Belgium that wants a Proximus Business Internet Fiber plan: the plan, whether the address has fiber, the speeds the customer needs, and more. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the published plans and conditions and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please quote Business Internet Go Fiber for a existing customer, who needs 400 Mbps download and 60 Mbps upload at an address without fiber. The order is placed online. The rest of the request is on screen. The quote states a regular monthly price of EUR 60.00 and a first-year total of EUR 540.00.
    4. 
      
  4. Before it goes out, the agent calls the validator.
    5. 
      
  5. Blocked, with four findings, all in one answer. The address is not eligible for fiber; Proximus offers the Business Internet Fiber plans only if the address is eligible for fiber. The customer needs 400 Mbps download but the chosen plan offers up to 150 Mbps. The customer needs 60 Mbps upload but the chosen plan offers up to 30 Mbps. The other one is on screen.
    6. 
      
  6. The validator returned four blocking findings in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
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  7. What this shows: for speed limits that depend on the plan, a rules-based CPQ is error-prone for this.
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  8. Now the agent resubmits.
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  9. The corrected request. It changes the plan to Business Internet Mega Fiber, the fiber at the address to yes, the promotional price applied to no, the stated regular monthly price to EUR 65.00 and the stated first-year total to EUR 780.00.
    10. 
      
  10. It calls the validator again.
    11. 
      
  11. This time the validator clears it.
    12. 
      
  12. The validator also returns the line-item quote, on screen.
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  13. All four earlier findings are cleared, and the validator's total, EUR 780.00, matches the quote.
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  14. Four problems caught in one call, fixed in one pass, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer.
    15.