Pricing Guide August 28, 2025 10 min read

Unlimited SIP Trunking: Is It Worth It?

Unlimited calling plans sound attractive, but are they actually the best value? We break down the hidden costs, fair use policies, and help you calculate whether metered or unlimited pricing makes more sense for your business.

What Does "Unlimited" Really Mean?

When SIP trunk providers advertise "unlimited calling," it rarely means truly unlimited. Almost every unlimited plan comes with restrictions that can significantly impact your actual costs and usage.

What They Advertise

  • "Unlimited calls included"
  • "Flat monthly rate"
  • "No per-minute charges"
  • "Predictable billing"

What the Fine Print Says

  • "Fair use policy applies"
  • "Subject to reasonable use limits"
  • "Domestic calls only"
  • "Maximum X concurrent calls"

Key Insight: Most "unlimited" SIP trunk plans define reasonable use as 2,000-5,000 minutes per channel per month. Exceed this, and you may face overage charges, throttling, or account termination.

Hidden Costs of Unlimited Plans

Beyond fair use policies, unlimited plans often come with costs that are not immediately obvious when comparing prices.

1. Fair Use Policy Violations

Providers monitor usage patterns. Call centers, auto-dialers, or high-volume users often get flagged. Penalties range from overage charges ($0.02-0.05/min) to service termination with little warning.

2. Quality Tradeoffs

To offer unlimited pricing, some providers use lower-cost routes with higher latency, more dropped calls, or inconsistent caller ID delivery. You may save money but frustrate customers.

3. Channel Limits

Unlimited often means unlimited minutes on a limited number of concurrent calls (channels). Need more simultaneous calls? That is an additional $15-30 per channel per month.

4. International Exclusions

Almost no unlimited plan includes international calls. These are billed separately, often at premium rates ($0.03-0.15/min or higher).

5. Regulatory Fees

The advertised price often excludes E911 fees, regulatory recovery charges, and other surcharges. These can add $5-15 per month per trunk.

When Unlimited Makes Sense

Despite the caveats, unlimited SIP trunking can be the right choice for specific use cases.

Inbound Call Centers

If you receive thousands of inbound calls monthly with predictable patterns, unlimited can provide cost certainty without fair use violations (inbound is usually treated more leniently).

High-Volume Sales Teams

Sales teams making 8+ hours of calls per day per agent may benefit from unlimited, assuming the plan genuinely supports that volume.

Budget Predictability Priority

If knowing your exact monthly telecom cost is more important than optimizing spend, unlimited provides that peace of mind.

Consistently Heavy Users

If you consistently use 10,000+ minutes per channel monthly and have verified the plan supports it, unlimited may be cheaper.

Break-Even Point: At IPComms' $0.009/min rate, unlimited typically becomes cost-effective around 5,500+ minutes per channel per month. Below that, metered is almost always cheaper.

When Metered is Better (Most Businesses)

For the vast majority of businesses, transparent metered pricing delivers better value. Here is why:

Business Type Typical Monthly Minutes Metered Cost* Unlimited Cost Better Option
Small Office (5 users) 500-1,500 min $4.50-$13.50 $30-50/channel Metered
Medium Business (20 users) 2,000-4,000 min $18-$36 $30-50/channel Metered
Professional Services 1,000-3,000 min $9-$27 $30-50/channel Metered
Retail/Restaurant 200-800 min $1.80-$7.20 $30-50/channel Metered
Call Center (per agent) 8,000-12,000 min $72-$108 $50-80/channel Depends**

*Based on IPComms $0.009/min rate. **Call centers should request custom volume pricing.

No Contracts

Pay only for what you use, cancel anytime

No Fair Use Worries

Use as much or little as you need

Premium Routes

No quality sacrifices for low pricing

Cost Comparison Calculator

Enter your estimated monthly usage to see which pricing model works better for your business.

IPComms Approach: Fair Metered Pricing

At IPComms, we believe in transparent, honest pricing. Our metered model means you only pay for the minutes you actually use, with no hidden fees or fair use gotchas.

Rate Type Cost Details
Outbound US/Canada $0.009-$0.010/min 6-second billing increments
Inbound $0.009/min Same low rate for all inbound
DIDs (Phone Numbers) $1.00/month Local numbers, toll-free available
Channels Unlimited No per-channel fees
E911 $1.50/month Per registered address

What You Get

  • Premium tier-1 routes for call quality
  • No contracts or commitments
  • Real-time usage dashboard
  • TLS/SRTP encryption included
  • 24/7 technical support
  • Works with any PBX system

What You Avoid

  • Fair use policy restrictions
  • Hidden regulatory fees
  • Per-channel monthly fees
  • Long-term contracts
  • Surprise overage charges
  • Quality compromises

Typical Savings: Most businesses switching from unlimited plans to IPComms metered pricing save 30-60% on their monthly telecom costs while getting better call quality.

High Volume? Contact Us for Custom Rates

If your business consistently uses more than 50,000 minutes per month, we offer custom volume pricing that can be even more competitive than our standard rates.

50K+ Minutes

Custom volume discounts

Call Centers

Dedicated account support

Enterprise

SLA and priority routing

High-volume pricing includes:

  • Rates as low as $0.007/min for qualifying volumes
  • Dedicated account manager
  • Priority technical support
  • Custom routing options
  • Flexible billing arrangements

Getting Started with IPComms

Ready to try transparent metered pricing? Getting started takes just a few minutes.

1

Create Your Free Account

Sign up at portal.ipcomms.net. No credit card required for testing.

2

Get Your SIP Credentials

Receive your trunk credentials instantly. Works with Asterisk, FreePBX, 3CX, and any SIP-compatible system.

3

Add a Phone Number

Choose from thousands of local and toll-free numbers, or port your existing numbers.

4

Start Making Calls

Configure your PBX and start calling. Pay only for the minutes you use.

Free Testing: We offer free test credits so you can verify call quality and compatibility before committing. See our free testing guide for details.

Try Transparent Metered Pricing

Join thousands of businesses saving money with IPComms fair, usage-based SIP trunking. No contracts, no hidden fees.

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