Users Manual

SME VOIP SYSTEM GUIDE 1.1 36 | P a g e
Proprietary and Confidential
Note: If BV32 is the only codec used (the only one in the
priority list), the user should use handsets that support BV32
(RTX8631-3), else a call will not be established.
G729 Annex B
Enable/Disable Annex B of codec G729
Note: Both parts must support it in order to avoid noise
and any other kind of voice interruption
USE PTIME Enabled
Use the RTP Packet size, chosen in the below setting.
RTP PACKET
SIZE
20ms The packet size offered as preferred RTP packet size by 8630
when RTP packet size negotiation.
Selections available: 20ms, 40ms, 60ms, 80ms
RTCP
Enabled
Enable/Disable RTCP
SEND SDP
CAPABILITIES
IN OFFER
(RFC5939)
Disabled Enable to support RFC 5939
SECURE RTP Disabled With enable RTP will be encrypted (AES-128) using the key
negotiated via the SDP protocol at call setup.
SECURE RTP
AUTH
Disabled With enable secure RTP is using authentication of the RTP
packages.
Note: with enabled SRTP authentication maximum 4
concurrent calls are possible per base in a single or multicell
system.
SRTP CRYPTO
SUITES
mT Field list of supported SRTP Crypto Suites. The device is born
with two suites.
Note: Within servers or even with multi servers, extensions must always be unique. This means same extension
number on server 1 cannot be re-used on server 2.
5.5 Network
In this section, we describe the different parameters available in the network configurations menu.
Screenshot