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How to Buy US & Canada VoIP Termination: Step-by-Step guide.

Ravi Lawrence
By Ravi Lawrence, COOClick to view profile & all authored articles
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How to Buy US & Canada VoIP Termination: Step-by-Step guide.

How to Buy US & Canada VoIP Termination: A Step-by-Step Guide

Buying VoIP termination isn't like buying a phone plan. Rates, routes, capacity, and compliance all affect how your calls perform and what you really pay. Get it right, and your agents stay on the phone with clear calls and strong answer rates. Get it wrong, and you'll face dropped calls, spam labels, and surprise costs.

Whether you run a call center, resell voice services, or manage traffic for a carrier, this guide walks you through buying US and Canada VoIP termination step by step.

(New to the topic? Start with: What Is VoIP Termination and How Does It Work?)

Step 1: Define your traffic

Before you contact any provider, get clear on what you'll be sending. This is the single most important step, because it decides the routes, capacity, and pricing you need.

Write down:

  • Type of traffic: conversational (support, account management) or dialer (high-volume outbound)?

  • Monthly volume: roughly how many minutes per month?

  • Destinations: mostly US, mostly Canada, or a mix? Any specific states or area codes?

  • Average call length: short dialer calls or longer conversations?

  • Concurrent calls: the most calls you'll have running at the same time.

  • CPS (calls per second): how many new calls your dialer starts each second at peak.

  • Peak hours: when your traffic is heaviest.

Providers price and route dialer traffic differently from conversational traffic, so be honest. Sending dialer traffic over routes meant for conversations can get calls blocked.

Step 2: Check your technical readiness

To connect to a termination provider, you'll typically need:

  • A SIP-capable system: a softswitch, IP-PBX, dialer or contact center platform

  • A static public IP address, so the provider can recognize and authorize your traffic

  • Supported codecs, most commonly G.711 (best quality) and sometimes G.729 (lower bandwidth)

  • Enough bandwidth: around 100 kbps per concurrent call with G.711, plus headroom

  • Firewall settings that allow SIP signaling and voice traffic from your provider

If anything here is unfamiliar, ask your provider's technical team. A good provider will help you through it.

Step 3: Understand the pricing models

US and Canada termination is usually priced in one of two ways:

NPA-NXX (rate deck) pricing

Rates are set by the destination's area code (NPA) and exchange (NXX). Your provider sends you a rate deck, a file listing the price for each destination. In the US, rates can also differ for interstate calls (between states) and intrastate calls (within the same state).

Best for: high-volume traffic where you want the lowest possible cost per destination.

Flat-rate pricing

One fixed rate for calls across the country, no matter which area code you're calling.

Best for: businesses that want predictable, simple billing.

Other pricing details to check

  • Billing increments: 1/1 (per second), 6/6 or 60/60. On short dialer calls, this can change your bill significantly.

  • Prepaid or postpaid: new accounts often start prepaid.

  • Minimum commitments, setup fees and surcharges

  • How often rates change, and how much notice you'll get

Step 4: Shortlist and evaluate providers

Look beyond the per-minute rate. Compare providers on:

  • Route quality: direct, Tier-1 routes, with no grey routes

  • Coverage: every US and Canadian destination you need

  • Capacity: enough concurrent calls and CPS for your peaks, with room to grow

  • Traffic support: do they explicitly support your traffic type (especially dialer traffic)?

  • Call authentication: full STIR/SHAKEN support

  • Fraud protection: monitoring for spoofing, robocalls and unusual traffic

  • Support: 24/7 technical support from voice specialists

  • Reporting: access to call detail records (CDRs) and quality metrics like ASR, ACD and PDD

Step 5: Request a quote

Share the traffic profile from Step 1 with your shortlisted providers and ask for:

  • A quote or rate deck for your destinations

  • Billing increments and payment terms

  • Capacity they can offer (concurrent calls and CPS)

  • Details on routes and support

The more detail you share, the more accurate (and competitive) your quote will be.

Step 6: Complete onboarding

Reputable US and Canada providers verify who they work with, because regulations require them to help stop illegal robocalls. Expect to:

  • Provide business details and documents (know-your-customer checks)

  • Describe your use case and calling practices

  • Sign a service agreement

  • If you're a voice service provider yourself, share relevant compliance information, such as your Robocall Mitigation Database listing in the US

A provider that skips these checks entirely is a red flag. It often means poor-quality or risky traffic on its network.

Step 7: Set up your connection

Your provider will typically:

  1. Authorize your IP addresses, so only your systems can send traffic

  2. Share their SIP connection details (signaling IPs, ports and any required prefixes)

  3. Confirm codecs and settings

You then configure your switch, PBX or dialer to send calls to the provider. Many providers can complete this in hours rather than days.

Step 8: Test before you commit

Never move full traffic without testing. Send a controlled amount of real traffic and check:

  • ASR (answer rate): are enough calls being answered?

  • ACD (average call duration): are calls lasting as expected?

  • PDD (post-dial delay): how long before the phone rings?

  • Audio quality: clear, with no echo, gaps or one-way audio

  • Caller ID: is your number displaying correctly on different mobile networks?

  • Spam labels: are calls showing as "Spam Likely"?

If you can, compare the results against your current provider on the same traffic.

Step 9: Go live and scale gradually

Once testing looks good, increase traffic in stages rather than all at once. This lets you confirm performance holds up at higher volumes and peak times.

Step 10: Monitor and optimize

Buying termination isn't a one-time decision. Keep an eye on:

  • Daily quality metrics (ASR, ACD, PDD)

  • CDRs and invoices, to make sure billing matches your records

  • Rate updates, especially on NPA-NXX decks

  • Number reputation and spam labels

Review performance with your provider regularly, and raise issues early.

Common mistakes to avoid

  • Choosing on price alone: cheap routes often mean lower answer rates and more failed calls.

  • Not disclosing dialer traffic: this can lead to blocked calls or suspended accounts.

  • Ignoring billing increments: 60/60 billing on short calls can quietly inflate costs.

  • Skipping testing: always test with real traffic before committing.

  • Overlooking compliance: STIR/SHAKEN, Do Not Call rules and caller ID accuracy all matter.

Buy US & Canada termination from Dial Edge Telecom

Dial Edge Telecom provides Tier-1 VoIP termination for the US and Canada, built for carriers, resellers, call centers and enterprises:

  • Voice termination for every US and Canadian destination

  • Conversational and premium dialer termination for your traffic type

  • NPA-NXX and flat-rate pricing options

  • Dedicated SIP trunks with custom CPS limits and API provisioning

  • STIR/SHAKEN support and fraud protection

  • 24/7 NOC monitoring, plus a customer portal and real-time CDR streaming

  • Custom rates tailored to your volume

Ready to get started? Request your custom rate quote, email sales@dialedgetelecom.com or call +1-863-513-5237.