Hello,A potential customer stated that he needs an IP Phone with ZRTP support. As far as I can see, this feature is only specified in the Datasheet of Htek IP Phones. I could not find this information in the documentation of Cisco or other popular br...

Hello everyone, have a good week.CUCM System version: 12.0.1.21900-7.Users complained that they could not pick up a ringing phone even though they were members of the same call pickup group.Then, when I tested it by including my own phone in a differ...

Hello, can I use the Cisco 3905 SIP IP Phone with Asterisk based PBX like Yeastar ?Please advise. ThanksEmre