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Term
| Term: | VoIP | Wiki | Freetz | IPPF | whmf | AVM | Web |
| Short for: | Voice over IP | ||||||
| Location: | Lexicon >> Telephony-Terms | ||||||
| Weblinks: | Wikipedia.int - Wikipedia.de | ||||||
| Description: | Telephony over an IP network | ||||||
Goto: FRITZ!OS - SMW-Browser
Details
VoIP is a generic term for Telephony over an IP network and covers many technologies and protocols.
The most important ones will be referred here:
Basics:
Extensions:
- SRTP - audio stream, encrypted
- SRTCP - stream status and control, encrypted
- T.38 - Fax over VoIP
- ENUM - number to host lookup by DNS
- CLEARMODE - transparent pseudo-codec - RFC 4040
- CNG - Comfort Noise Generation - RFC 3389
- G.722
- G.723
- G.726
- G.729
- iLBC
- L16 - 16-bit signed uncompressed
- PCMA - 8-bit logarithmic A-law companded - G.711
- PCMU - 8-bit logarithmic µ-law companded - G.711
- rtploopback - local loop
- Speex - RFC 5574
- telephone-event
Alternatives:
- CSVoice - Voice over UMTS
- VoLTE - Voice over LTE
- VoNR - Voice over 5G
- PacketCable - Voice over DOCSIS
FRITZ!OS
In FRITZ!OS VoIP is performed by voipd.
The Codecs are handled in librtpstream.so and libmscodex.so.
In kernel there's krtp.ko and pcmlink.ko.
There's an AVM knowledge base document about Supported VoIP Codecs.
