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App Developer for SIP Integration

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eventPublished on Sep 30, 2026 · verifiedWe confirmed on Sep 30, 2026 that it's still live

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US$ 65 – US$ 130 per project

About the job

Looking for an app developer to create a business application with the following features: - SIP login - Incoming/Outgoing call functionality - Dial pad and call history - Speaker, Mute, and Hold options - SIP server integration with Asterisk/FreePBX support - Background incoming call functionality - Source code delivery - APK + Play Store-ready build

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