Welltech WG5260 V.6.2 - Manual (Page 62)

Welltech Computer Co., Ltd.
WellGate 5260 User Guide – V6.2.0 - 62 -
Figure 7.4-1
Basic Parameter Description:
• Codec Selection Policy: Selection order to match the remote SDP for
codec selection.
- Local SDP Order: Use local SDP order to match codec
- Remote SDP Order: Use Remote SDP order to match codec
• Local Codec 1~4: Codec selection priority (1 to 4) (1: highest, 4: lowest)
• G.723 Bit Rate Used: G.723.1 high bits rate (6.3k) or low bit rate (5.3k) is
used
• 180 SDP: Set SDP for 180 ring message
• 183 SDP: Set SDP for 183 call progress indication.
• DTMF Relay Method: DTMF transport type selection
- Transparent: transmit DTMF over audio channel
- SIP INFO: Use SIP INFO Message to relay DTMF
- RFC2833: Use RFC2833 for DTMF over RTP packet
• RFC2833 Payload Type: RTP payload type used for RFC2833 DTMF
relay
• Fax Transmission: Fax transparent type selection
- T.38 Fax Relay: T.38 fax relay
- Transparent: Transparent mode (by voice packet)
- By Pass: Allow the fax pass mode (bypass to G.711 A-law or u-law).
• T.38 ECM Mode: T.38 Error Correction Mode
- T.38 ECM Interoperable: Recommend to be used
- T.38 ECM Backward Compatible Mode: Only for interoperable is not
working
• Fax Redundant Depth: T.38 fax redundant packet (0-2).
- 0: No redundant
- 1: 1 packet lost redundant
- 2: 2 packets lost redundant
• Accept Proxy Call Only:
- Yes: Only call from outbound proxy server is allowed
- No: Accept any SIP calls