TELES VoIP Box BRI Series, Справочное руководство

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4 Configuration files
VoIPBox DSL / VoIPBox BRI – version 21.0.009 Page 81
VoipIpMask=<ip mask>
The subnetmask is used to determine the size of the IP address range for incoming
traffic. The syntax is
0x
followed by the mask in hexadecimal notation. Example of a
Class C mask entry:
0xffffff00
. Default is
0xffffffff
(only incoming traffic is accepted
from the defined peer address).
VoipSignalling=<int>
Determines the profile’s signaling protocol for outgoing VoIP calls. In the case of in-
coming calls, auto recognition ensures that each call from the peer is accepted, re-
gardless of the protocol:
0=H.323 (default), 1=SIP udp, 2=SIP tcp, 3=tls.
NOTE: TLS requires the following additional software: crypto.vnd and the key files
key.pem and cert.pem.
VoipCompression=<list>
The compression to be used, in order of preference. At least one matching codec with
the peer must be defined.
Voice:
g729, g729a, g729b, g729ab
These codecs have a bit rate of 8 kbit/s (compression ratio 1:8). A stands
for annex a and b for Annex b.
g72616, g72624, g72632, g72640
These ADPCM codecs have various bit rates: g72616 = 16kBit/s (compres-
sion ratio 1:4), g72624 = 24kBit/s, g72632 = 32kBit/s (compression ratio
1:2), and g72640 = 40kBit/s.
NOTE: G726 32kBit/s can also be signaled as G.721 by using the entry g721.
g728
The Codec has a bit rate of 16kBit/s (compression ratio 1:4).
g711a, g711u
These PCM codecs have a bit rate of 64kBit/s. No voice compression oc-
curs. a stands for a-law and u for μ -law.
g723, g723L
These codecs work with 30ms data frames. g723.1 uses a bit rate of 6.3
kbit/s, and g723L uses a bit rate of 5.3 kbit/s to send RTP packets.
NOTE: This has no influence on the compression ratio of incoming RTP packets. Both
sides must be able to receive both ratios.
gsm
GSM-FR (full rate) has a bit rate of 13 kbit/s.
The following codecs are also possible: g721 (SIP only)
Fax: t38
T.38 (fax over IP) allows the transfer of fax documents in real time between
2 fax machines over IP. Following fax detection during a call, the voice co-
dec will switch to T.38.
Data: trp
Transparent or clear mode (RFC 4040). Transparent relay of 64 kbit/s data
streams.
gnx64
ccd
Clear-channel signaling (as per RFC3108)
Define a special profile for data call origination or destination numbers. Bear in mind
that echo cancellation in this VoIP profile might be switched off (
VoipECE=no
).
VoipMaxChan=<count>
Maximum number of channels that can be used with the profile. If this parameter is
not defined (default), there will be no limit.
Table 4.17
route.cfg
: VoIP Basic Parameters (continued)
VoIP Basic Parameters