TalkTelX
Insights

VoIP Insights & Guides

Practical writing on SIP trunking, TCPA compliance, call routing, and contact-centre operations. Written by the engineers and specialists who run our platform.

Latest Articles

VoIP Optimization7 min read

How to Reduce Dropped Calls VoIP on US Outbound

US outbound calling is unforgiving. Here is a practical checklist to reduce dropped and failed VoIP calls for dialers, contact centres and resellers, plus how TalkTelX helps.

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TalkTelX
October 1, 2026
VoIP Billing7 min read

Per-Second VoIP Termination Billing: How It Works

Per-second billing can reduce waste for high-volume dialers and resellers. Here is how VoIP termination billing is calculated, what affects your cost, and how to audit it.

TT
TalkTelX
September 27, 2026
VoIP Strategy7 min read

Toll Free vs Local DID: How to Choose for US Calling

Unsure whether to buy toll-free or local US DIDs? See how each affects brand perception, reach, costs, routing and answer rates so you can pick the right mix.

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TalkTelX
September 23, 2026
VoIP Compliance7 min read

STIR/SHAKEN Call Blocking: Why US Calls Get Stopped and What to Do

STIR/SHAKEN helps carriers verify caller ID and fight spoofing. Learn how it triggers call blocking, what attestation levels mean, and how to improve call completion.

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TalkTelX
September 19, 2026
VoIP for Contact Centres7 min read

How to Choose a US Termination Carrier

Picking a US termination carrier impacts call quality, answer rates and compliance. Here is a practical checklist tailored for contact centre and dialer traffic.

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TalkTelX
September 15, 2026
VoIP for Contact Centres7 min read

How to Choose a SIP Trunk for Outbound Calling

Looking for a reliable sip trunk for contact centre outbound? Here’s how to plan capacity, improve answer rates, and stay compliant while controlling costs with TalkTelX.

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TalkTelX
September 11, 2026
VoIP Buying Guides7 min read

How to Buy US DID Numbers for Your Business

A practical guide to buy US DID numbers for contact centres and VoIP resellers. Learn number types, coverage, compliance, pricing and how to provision at scale.

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TalkTelX
September 7, 2026
VoIP Termination8 min read

US voice termination: a buyer’s guide

Choosing US contact centre termination is about more than the lowest rate. Here’s how to vet carriers for compliance, call quality, caller ID reputation and scale.

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TalkTelX
September 3, 2026
Strategy8 min read

Number Health and Spam Labelling: The Hidden Variable in Outbound Performance

Spam Likely labels can silently cut your answer rate in half. Here is how carriers decide to flag your numbers, what you can do about it, and why number health deserves a place in your campaign strategy.

JW
James Whitfield
June 30, 2026
Operations6 min read

How Smart Call Routing Cuts Hold Times and Lifts First-Call Resolution

Moving from round-robin call distribution to skills-based routing is a measurable improvement in agent utilisation, handle times, and customer satisfaction — here is how it works.

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Marcus Telford
June 23, 2026
Compliance9 min read

TCPA Compliance in 2025: What Every Outbound Team Must Know

TCPA violations start at $500 per call and can reach $1,500 for wilful infractions. Here is what the law requires, where most teams get it wrong, and how to stay protected.

SO
Sarah Okonkwo
June 16, 2026
Infrastructure7 min read

What Is SIP Trunking? A Plain-English Guide for Contact Centres

SIP trunking replaces legacy phone lines with internet-based voice connections. Here is what that means for your contact centre, and what to look for in a provider.

JW
James Whitfield
June 9, 2026

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