Specifications

MyPBX SOHO Administrator Guide
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Figure H-1-6
Notes:
1. If remote registration isn’t required, please disable it.
2. If extensions register to MyPBX via WAN port, please only enable “register remotely”.
1.2.4 TLS registry (Optional)
Introduction
Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL), are
cryptographic protocols that provide communication security over the Internet. They use
asymmetric cryptography for authentication of key exchange, symmetric encryption for
confidentiality and message authentication codes for message integrity. Several versions
of the protocols are in widespread use in applications such as web browsing, electronic
mail, Internet faxing, instant messaging and Voice-over-IP (VoIP).
TLS is supported in MyPBX for security SIP registry; you can also register SIP trunks to
VoIP providers via TLS. We need to upload the certificate into MyPBX and the IP phones
together for authorization.
Hackers send the register request to PBX for registry via UDP generally, if TLS is enabled
in MyPBX, hacker cannot register extension without the CA, the registry request will be
refused directly.
Refer to Appendix I
to get the detailed steps of how to use TLS in MyPBX.
Note: TLS is disabled in MyPBX by default; we need to enable it in “SIP settings” page in
advance before using it.