H3C Technologies H3C MSR 5600 - Manual (Page 110)

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To enable media flow-around:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter voice view. voice-setup N/A
3. Enter dial program view. dial-program N/A
4. Enter VoIP entity view. entity entity-number voip N/A
5. Enable media flow-around. media flow-around
By default, the SIP trunk
device changes the media
address of a media packet
to its own address before
forwarding the media
packet.
Enabling DO-EO conversion
An INVITE request with SDP Offer is an early offer, and an INVITE request without SDP Offer is a delayed
offer. Some ITSPs mandate early offer calls for charge security. To meet this requirement, enable delayed
offer to early offer (DO-EO) conversion on the SIP trunk device.
To enable DO-EO conversion:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter voice view. voice-setup N/A
3. Enter dial program view. dial-program N/A
4. Enter VoIP entity view. entity entity-number voip N/A
5. Enable DO-EO conversion. voice-class sip early-offer forced
By default, DO-EO
conversion is disabled.
This command does not
takes effect if codec
transparent transmission or
media flow-around is
enabled.
Displaying and maintaining SIP trunk
Execute display commands in any view.
Task Command
Display SIP trunk account
registration status information.
display voice sip register-status