CONNECTIVITY STATUS

Signal in Iran

Blocked

Signal is blocked in Iran due to government firewall restrictions and app-store unavailability. The app cannot be reliably accessed or used for messaging or calls without circumvention tools.

Last verified: July 2026

BlockedVoice Calls
BlockedVideo Calls
BlockedMessaging
AvailablePSTN via Sayfone

Signal is blocked in Iran and cannot be used for messaging or calls.

FEATURE BREAKDOWN

Current Status in Iran

Signal is fully blocked across all features in Iran.

  • Blocked

    Voice Calls

    Voice calls via Signal are blocked by Iran's national firewall. The app cannot establish connections for voice communication.

  • Blocked

    Video Calls

    Video calling is blocked by Iran's firewall restrictions. The feature is inaccessible regardless of network type.

  • Blocked

    Messaging

    Text messaging via Signal is blocked. The app cannot be accessed or used for any messaging purpose in Iran.

  • Not Supported

    PSTN Calling

    Signal does not support calling landlines or mobiles. Sayfone provides PSTN calling as a reliable alternative.

TECHNICAL & REGULATORY REASONS

Why Signal Is Blocked

Signal is blocked due to Iran's firewall and regulatory restrictions on foreign messaging apps.

  • National Firewall (Deep Packet Inspection)

    Iran's government operates a sophisticated firewall that blocks encrypted messaging apps including Signal. The system uses deep packet inspection to identify and block Signal's traffic patterns and server connections.

  • App Store Restrictions

    Signal is not available on Iranian app stores. Users cannot download the app through official channels, making installation difficult and risky.

  • Regulatory Policy

    Iran restricts foreign messaging apps to promote domestic alternatives and maintain government oversight of communications. Signal's encryption and privacy focus conflict with these policies.

OTHER OPTIONS

Alternatives People Try

Users in Iran try various alternatives to Signal, with mixed success.

  • Telegram

    partial

    Telegram is partially accessible in Iran but faces intermittent blocking and throttling. Users often rely on VPNs for reliable access.

  • WhatsApp

    partial

    WhatsApp works inconsistently in Iran; messaging may function but calls are often blocked or degraded.

  • Sayfone

    yes

    Sayfone routes calls over PSTN and works reliably in Iran without requiring the recipient to have any app installed.

  • VPN Services

    partial

    VPNs can temporarily bypass blocks but are monitored by authorities and may be throttled or blocked themselves.

  • Botim

    yes

    Botim is a licensed local app in Iran that works reliably for messaging and calls within the country.

VPN CONSIDERATIONS

Can You Use a VPN to Unblock Signal?

VPNs can temporarily bypass Signal's block but carry significant risks in Iran.

While VPNs can theoretically bypass Iran's firewall, using them to access Signal is risky. Iran actively monitors and throttles VPN traffic, and using VPNs for circumvention can have legal consequences.

VPNs are unreliable and risky in Iran. Sayfone provides a safer, legal alternative that works without circumvention.

  • Using a VPN on Your End

    High Risk

    Running a VPN to access Signal may work temporarily but Iran's authorities monitor VPN usage. VPN services are frequently blocked or throttled, making this unreliable.

  • Recipient Using a VPN

    Not Applicable

    Even if the recipient uses a VPN, Signal still requires both parties to have the app installed and accessible. This does not solve the core blocking issue.

  • Both Using VPNs

    High Risk

    Both parties using VPNs adds complexity and risk without solving the fundamental problem. Iran's firewall actively targets VPN traffic patterns.

  • Sayfone: No VPN Needed

    Safe

    Sayfone routes calls over standard PSTN networks and does not require VPNs. It works reliably without circumvention tools or legal risk.

THE BETTER WAY

Sayfone: Call Iran Reliably

Sayfone routes calls over PSTN and works reliably in Iran without app blocks or VPNs.

  • Works in Iran without VPN or circumvention tools
  • Reach any landline or mobile number in Iran
  • Recipient does not need to install any app
  • Crystal-clear HD voice quality with adaptive codec
  • Affordable rates starting at $0.08 per minute
  • No data dependency; works on any phone connection

Active call

Tehran Mobile

+98 (***) ***-7834

Quality

HD Voice

Latency

Standard PSTN routing

Route

Direct PSTN connection

Cost so far

$0.24

FEATURE COMPARISON

How Sayfone Compares

Sayfone offers reliable calling to Iran when Signal and other apps are blocked.

Signal

Works in IranNo
Reaches LandlinesNo
Recipient Needs AppYes
Blocked in ShutdownsYes

Signal is blocked by Iran's firewall and cannot be used for any communication.

Telegram

Works in IranPartial
Reaches LandlinesNo
Recipient Needs AppYes
Blocked in ShutdownsOften

Telegram works inconsistently in Iran and faces frequent throttling or blocking.

Recommended

Sayfone

Works in IranYes
Reaches LandlinesYes
Recipient Needs AppNo
Blocked in ShutdownsNo

Sayfone routes over PSTN and works reliably in Iran without app blocks or VPNs.

DIASPORA ROUTES

Call Iran From Anywhere

Sayfone lets you call Iran from major diaspora hubs worldwide.

LEARN MORE

Related Guides

Explore calling rates, restrictions, and other messaging apps for Iran.

COMMON QUESTIONS

Frequently Asked Questions

Answers to common questions about calling Iran and using messaging apps.

Still have questions? Contact our support team for help.

Get Support

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  • Pay as you go
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  • Works when apps don't