Welltech VoIP ATA series V.2.1 - Manual (Page 87)

ATA-171/172/171P/171M/171+/172+
User’s Guide
7.3.1 Codec Settings
7.3.1 Function
Code Settings provide Codec priority, RTP Packet Length, Voice VAD function. .iLBC
and G.723 cannot exist at the same time. iLBC only can support Phone
equipment now.
7.3.2 Instruction
Figure 1: Without iLBC function
Figure 1
Codec Priority Set the Codec Priority.
Codec Priority 1 Default: G.711 u-law; Codec Priority 1. Provides No used,
G.711u-law，G.711a-law，G.723，G.279，G.726–16，G.726–24，
G.726–32，G.726–40，GSM mode.
Codec Priority 2 Default: G.711a-law; Codec Priority 2.
Codec Priority 3 Default: GSM；Codec Priority 3.
Codec Priority 4 Default: G.729；Codec Priority 4.
Codec Priority 5 Default: G.726-16；Codec Priority 5.
Codec Priority 6 Default: G.726-24；Codec Priority 6.
Codec Priority 7 Default: G.726-32；Codec Priority 7.
Codec Priority 8 Default: G.726-40；Codec Priority 8.
Codec Priority 9 Default: GSM；Codec Priority 9.
RTP Packet
Length Provides RTP Packet Length information.