Sinch Hidden Costs: Voice Carrier Fees + 27 More

Quick Answer

Last verified: June 15, 2026

High confidence

Sinch uses custom pricing as of August 2026 with 3 plans available. Contact Sinch directly for a personalized quote. Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

Free tier: No free tier available

Sinch offers 3 pricing tiers: SMS, Voice, RCS.

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Sinch uses custom pricing, and hidden costs like implementation and support add to the quoted price as of August 2026. Contact the vendor for a quote. Hidden costs like implementation and support add significantly to the total. Key hidden costs: phone number setup/monthly fee (voice), per-minute voice charges, advanced voice features. Verified from 1 sources by CostBench.

Hidden Costs Breakdown

Phone Number Setup/Monthly Fee (Voice)

low implementation

A setup fee of $0.80 and a monthly fee of $0.80 apply for a voice phone number.

industry
SMS API: * Number Setup and Monthly Fees: * 10DLC (10-Digit Long Code): Monthly fee of $1.00 and a one-time setup fee of $1.00.

Per-Minute Voice Charges

medium overage

Per-minute charges include PSTN inbound ($0.008/minute), PSTN outbound ($0.01/minute), SIP inbound ($0.0025/minute), and app-to-app calling ($0.002/minute after 2500 free minutes/month).

industry
Per-Message Charges (base rates before carrier fees): * US 10DLC: $0.0078 per outbound and inbound message.

Advanced Voice Features

medium addon

Advanced voice features incur costs such as call recording ($0.002/minute), transcription ($0.04/minute), Voice IVR ($0.015/voice input event), and answering machine detection ($0.005/call), while number masking is priced based on call legs and Sinch numbers.

industry
Number masking is priced based on included call legs and used Sinch numbers.

Voice Carrier Fees

high overage

Additional carrier fees apply on top of Sinch's per-minute rates and can vary.

industry
Carrier Fees: These apply on top of Sinch's per-minute rates and can vary.

Unregistered 10DLC Surcharges

critical overage

Unregistered 10DLC traffic incurs higher carrier surcharges of $0.012 per SMS and $0.021 per MMS.

industry
Unregistered 10DLC (10-Digit Long Code) traffic can incur higher carrier surcharges, specifically $0.012 per SMS and $0.021 per MMS.

WhatsApp Add-on

medium addon

A WhatsApp add-on costs approximately $10 per month.

industry
Setup Fees: * Short code setup costs can be up to $1,000 per month, plus an initial setup fee.

Meta WhatsApp Message Fees

high overage

Meta charges per-message fees for WhatsApp marketing messages, typically ranging from $0.05 to $0.15 per message depending on the recipient's country.

industry
On top of this, Meta charges per-message fees for WhatsApp marketing messages, typically ranging from $0.05 to $0.15 per message, depending on the recipient's country.

Sinch Template Message Overage

high overage

For template messages exceeding a credit limit on annual contracts, Sinch charges an additional ~$0.05 per message, beyond Meta fees.

industry
For template messages exceeding a credit limit on annual contracts, Sinch charges an additional ~$0.05 per message, beyond Meta fees.

Sinch Chatlayer AI Bot

medium addon

The Sinch Chatlayer AI bot is a separate product starting at approximately $499 per month.

industry
The Sinch Chatlayer AI bot is a separate product, starting at approximately $499 per month.

Sub-account Fees

low addon

Sub-account fees are around $20 per month.

industry
Setup Fees: * Short code setup costs can be up to $1,000 per month, plus an initial setup fee.

Gold Support

medium support

Faster 'Gold support' is available, implying standard support may be slower and comes at an additional cost.

industry
"Gold support" is available, implying that standard support may be slower and faster support comes at an additional cost.

Short Code Setup

high implementation

Short code setup costs can be up to $1,000 per month, plus an initial setup fee.

industry
Setup Fees: * Short code setup costs can be up to $1,000 per month, plus an initial setup fee.

RCS Activation

medium implementation

RCS activation can cost up to $500 one-time.

industry
Setup Fees: * Short code setup costs can be up to $1,000 per month, plus an initial setup fee.

RCS Sender Profile Changes

low implementation

RCS sender profile changes cost approximately $75 per change.

industry
RCS (Rich Communication Services) activation can cost up to $500 one-time, with sender profile changes costing approximately $75 per change.

MMS Setup

medium implementation

MMS setup is around $500 one-time.

industry
Setup Fees: * Short code setup costs can be up to $1,000 per month, plus an initial setup fee.

DLC Brand Registration

low compliance

DLC brand registration for the US market includes fees of approximately $4 one-time.

industry
DLC registration for the US market includes brand registration fees of approximately $4 one-time, plus campaign fees of about $10 per month or more.

DLC Campaign Fees

medium compliance

DLC campaign fees for the US market are about $10 per month or more.

industry
DLC registration for the US market includes brand registration fees of approximately $4 one-time, plus campaign fees of about $10 per month or more.

Number Rental

low addon

Optional rental of local, mobile, or toll-free numbers incurs additional charges.

industry
Optional rental of local, mobile, or toll-free numbers also applies.

Answering Machine Detection

low addon

Answering Machine Detection is billed at $0.005 per call.

industry
Additional features are billed separately: * Answering Machine Detection: $0.005 per call.

Recording

low addon

Recording for Voice API is billed at $0.002 per minute.

industry
Voice API Specific Costs: Pricing for the Voice API is usage-based with per-minute charges for inbound and outbound calls.

Transcription

medium addon

Transcription for Voice API is billed at $0.04 per minute.

industry
Voice API Specific Costs: Pricing for the Voice API is usage-based with per-minute charges for inbound and outbound calls.

Voice IVR

low addon

Voice IVR is billed at $0.015 per voice input event.

industry
Voice IVR: $0.015 per voice input event.

DLC Setup & Monthly Fees

medium implementation

Sinch charges a one-time setup fee of $1.00 and a monthly fee of $1.00 per 10DLC number; brand registration through TCR costs $4, and campaign registration fees range from $0 to $30 per month, charged three months upfront initially.

industry
Brand registration through The Campaign Registry (TCR) incurs a $4 fee, with campaign registration fees ranging from $0 to $30 per month, charged three months upfront initially.

RCS Campaign Activation & Sender Profile Fees

medium implementation

RCS campaigns in the US may have one-time activation fees of up to $500, and sender profile changes can cost around $75 per change.

industry
RCS (Rich Communication Services) campaigns in the US may have one-time activation fees of up to $500, and sender profile changes can cost around $75 per change.

Additional Sinch Engage Users

medium addon

For Sinch Engage, additional team members can cost around $20 each per month.

industry
Additional Users: For Sinch Engage, additional team members can cost around $20 each per month.

SMS for Salesforce Integration

medium addon

The "SMS for Salesforce by Sinch Engage" app costs an additional ~$10 per user per month.

industry
CRM Integrations: The "SMS for Salesforce by Sinch Engage" app costs an additional ~$10 per user per month.

Unused Credit Expiration

high overage

Unused SMS and message credits are typically deleted at the end of each billing month and do not roll over.

industry
Credit Rollover: Unused SMS and message credits are typically deleted at the end of each billing month and do not roll over.

Frequently Asked Questions

01 What hidden costs should I budget for with Sinch?

Beyond the license fee, budget for: Phone Number Setup/Monthly Fee (Voice) ($0.80 setup, $0.80/month); Per-Minute Voice Charges ($0.008/minute, $0.01/minute, $0.0025/minute, $0.002/minute); Advanced Voice Features ($0.002/minute, $0.04/minute, $0.015/voice input event, $0.005/call); Unregistered 10DLC Surcharges ($0.012 per SMS and $0.021 per MMS); WhatsApp Add-on ($10 per month); Meta WhatsApp Message Fees ($0.05 to $0.15 per message); Sinch Template Message Overage (~$0.05 per message); Sinch Chatlayer AI Bot ($499 per month); Sub-account Fees ($20 per month); Short Code Setup (up to $1,000 per month); RCS Activation (up to $500 one-time); RCS Sender Profile Changes ($75 per change); MMS Setup ($500 one-time); DLC Brand Registration ($4 one-time); DLC Campaign Fees ($10 per month or more); Answering Machine Detection ($0.005 per call); Recording ($0.002 per minute); Transcription ($0.04 per minute); Voice IVR ($0.015 per voice input event); DLC Setup & Monthly Fees ($1.00 (one-time), $1.00 (monthly), $4 (brand), $0-$30 (campaign monthly, 3 months upfront)); RCS Campaign Activation & Sender Profile Fees (up to $500 + $75 per change); Additional Sinch Engage Users ($20 each per month); SMS for Salesforce Integration (~$10 per user per month). Exact totals depend on your deployment size and negotiated terms.

02 Does Sinch charge for implementation?

Sinch implementation is not included in the license cost. A setup fee of $0.80 and a monthly fee of $0. Estimated impact: $0.80 setup, $0.80/month.

03 How much does Sinch support cost?

Faster 'Gold support' is available, implying standard support may be slower and comes at an additional cost..

04 Are there overage or storage costs with Sinch?

Per-minute charges include PSTN inbound ($0.008/minute), PSTN outbound ($0. Estimated impact: $0.008/minute, $0.01/minute, $0.0025/minute, $0.002/minute.

05 What add-ons cost extra with Sinch?

Add-on pricing for Sinch varies by feature. The sourced cost breakdown above lists any verified add-on costs we have.

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