Does the Voyced Hosted IPPBX support SRTP?
Yes, SRTP is supported by default.
Voyced supports SRTP in passthrough mode, which means:
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Your devices (phones, PBX systems, softphones) handle the encryption and decryption
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Our platform does not encode or decode the SRTP stream itself
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We simply allow the encrypted media to pass through without interference
This setup ensures that encrypted audio can be used end-to-end, as long as both sides support it.
What is SRTP?
SRTP (Secure Real-Time Transport Protocol) is a secure version of RTP, the protocol used for audio in VoIP calls.
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It adds encryption, message authentication, and integrity checking
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It helps protect your calls from eavesdropping and denial-of-service (DoS) attacks
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It works across both wired and wireless networks
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It’s been part of VoIP security standards since 2004 (defined in RFC 3711 by the IETF)
SRTP was created by experts at Cisco and Ericsson to offer a scalable and efficient layer of protection for real-time voice traffic.
SRTP compatibility
To use SRTP successfully, all systems involved must support it. Be sure to check:
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Your VoIP phones or adapters
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Your softphone or PBX software
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Any intermediate services in your call flow
If SRTP is enabled on one side but not supported on the other, the call may fail or fall back to unencrypted RTP.
For more technical background, see: SRTP on Wikipedia
Need help confirming if your setup supports SRTP?
Just ask, we’re happy to assist.
Last updated: 01/04/2025
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Given the fast evolution of the telecom sector, Voyced does not offer any guarantee about the accuracy and completeness of the information offered.
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