DTMF: a) In-band, Analogy of traditional DTMF signalling, where tones are combined with speech into a single voice channel., b) SIP INFO (RFC 2976), The DTMF signal is sent separately in the SIP message body, c) RTP Event (RFC 2833) as part of the RTP stream, RTP Event (RFC 2833) - DTMF signals are sent as separate RTP Event packets, outside of the main audio stream.
Cloud: 2N Elevator Centre
Other
Dimensions: 195 × 119 × 61mm
Weight: 600g
Humidity: max 90%, non-condensing
Protection of intellectual property: IP43
Operating temperature: -40°C to +85°C
LED status: power supply, telephone network, FXS line, data, signal strength
Certification: EN 62368-1, EN 81-28, EN 301489-1, EN 301489-7, EN 301511, EN 301908-1, EN 301908-2, EN 301908-13, EN 62311, EN 63000, EN 12016, FCC Part 15b, UL 62368-1, PTCRB, ICES-003 Issue 6, CSA C22.2 No.62368-1, AS/CA S003.1, S003.3, S042.1, S042.4, AS/NZS 62368.1 App ZZ
Please note:
The power lead is ready to be connected to a permanent power supply. If you are connecting it to a 13A mains socket, a 13A plug will need to be fitted (not supplied).