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DWR-980
Phone
Call Features
Voice Features
·
Direct IP-to-IP сall without SIP proxy (P2P)
·
Call hold/retrieve
·
Call awaiting
·
Forwarding (unconditional, busy, no answer)
·
Do Not Disturb
·
Anonymous call blocking
·
Speed/abbreviated dialing
·
PIN code before dialing
·
Phone book
·
Hotline
·
Vertical service codes
·
CLIR
·
Intercom (internal calls without SIP server)
·
Filtering SIP packets by IP address/domain name
Filtering by IP address (white/black list)
·
Alarm clock
·
Logging and recording calls
·
Sending text messages to VoIP gateways/IP phones
·
Codecs: G.711 a/μ-law, G.729A, G.726, G.722, G.723.1,
GSMFR, ILBC, SPEEX
·
DTMF detection and generation
·
In-band DTMF, out-of-band DTMF (RFC2833, SIP-
INFO)
·
Comfort Noise Generation (CNG)
·
Voice Activity Detection (VAD)
·
Dynamic Jitter Buffer
·
Echo Cancellation (LEC/NLP)
·
Call progress tone generation (FXS)
·
DTMF/PULSE dial support
·
Caller ID detection and generation
·
T.30 FAX bypass to G.711, T.38 Real Time FAX Relay,
V.152
·
Adjustable Flash Time
·
Advanced call transfer
·
Volume control (speaker/microphone)
Quick Installation Guide
53
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