Are your speakers RFC 3261 compliant?
Our speakers are compliant with RFC 3261, but not every SIP extension is
fully supported, such as extensions for certain phone features that our
speakers do not require.
CyberData Products and RFC 2833.
CyberData devices only support RFC 2833 Dual-Tone Multi-Frequency (DTMF) digits. Our devices require Real-time Transport Protocol (RTP) event notifications to process DTMF; which is supported by the vast majority of the telecom industry. Our devices ...
Asterisk Settings for Speakers
What are the Asterisk settings to set up our paging speakers? For both IP Speaker and the Loudspeaker Amplifier, the settings are contained in the sip_additional.conf file in Asterisk. This file should read as follows in which "100" represents the ...
Compatible IP-PBX Servers and SIP Registration
To answer SIP calls, CyberData devices need to be registered with a SIP server. The registration process requires entering SIP credentials provided by the SIP Server into the CyberData device. Credential formats vary by vendor and the credentials ...
SIP/SDP packets explained
When looking through wireshark traces and network logs from the video intercom it is crucial to understand SDP packets and the information that they convey. An SDP packet is used during call setup and is never transmitted on its own. It is only ...
Are the speaker contacts potential-free?
Our loudspeaker outputs are potential-free. If no paging input occurs, the outputs is at or near zero voltage.