[jan1972]

I heared that the Linksys SPA962 supports TLS and SRTP and bought one. Now I checked the web interface and turned on TLS. It registers and the SIP traffic secure. So far so good.

But how can I make it to use SRTP? I see a field where I can put a SRTP key, but they must be kidding I want to negotiate a key per call. Did anybody get that working?

[eric]

All Linksys SPA series devices support TLS and SRTP.

The Linksys implementation of SRTP uses mini-certificates, each device must have one to communicate securely with other devices.

You can generate certificates with our configuration wizard.

[jan1972]

Well, how can the Linksys devices then talk SRTP to devices from other vendors? For example, counterpath, snom, pbxnsip, InGate, AudioCodes, and also Cisco are using session descriptions in the SDP (I think that is RFC 4568).

[Gary Zielke]

I am also struggling with SRTP and Sipura products. The wizard that Eric mentions works for the ATAs but it says not to use it for the phones and that Sipura is working on the problem. That is dated a year ago. Is that warning no longer valid or is there another wizard? Thanks.