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Key skills for this role
Own SIP signaling, RTP/SRTP media, and SBC configuration.
Integrate and manage carriers, SIP trunks, and number pools.
Tune codecs, jitter buffers, and routing for call quality at scale.
Debug live call issues across the full media path.
4+ years telephony / VoIP engineering.
Deep hands-on SIP, RTP/SRTP, and SBCs (FreeSWITCH, Kamailio, or Asterisk).
Carrier integration, DID provisioning, and call-routing experience.
Bonus: WebRTC, STIR/SHAKEN, or real-time media at scale.
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Mid · 4+ years experience
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