Hi. Wondering if anyone has tried TLS/SRTP with a Cisco SPA ATA or phone and this carrier?
I started with this SPA112 with factory default settings, adjusted them using the Voip.ms requirements for UDP mode and it registered and made calls successfully. I also tried it in TCP mode and it registered and made calls successfully. After that I applied the settings proposed by Voip.ms in their wiki https://wiki.voip.ms/article/Call_Encryption_-_TLS/SRTP but this device failed to register in TLS/SRTP mode. (On a separate note I have a softphone set for TLS/SRTP that works OK with Voip.ms but not this iron.)
After some reading I discussed issue with tech support at the carrier. They quickly responded by supplying an http URL to insert into the Voice Provisioning section and test as the Custom CA URL. While the Custom CA URL installs successfully according to the Voice Information screen the device still fails to register.
I am attaching the debug output from the ATA during the time I followed the configuration steps proposed by Voip.ms. Comments have been added to hilite each step. If anyone can spot anything meaningful in the log would appreciate hearing about it.
Thanks
Edward
