Enabling Media Flow-Around - HP FlexNetwork MSR Series Configuration Manual

Step
5. Enable codec transparent
transfer.

Enabling media flow-around

This function enables the media packets to pass directly between two SIP endpoints, without the
intervention of the SIP trunk device. The media packets flow around the SIP trunk device.
To enable media flow-around:
Step
1. Enter system view.
2. Enter voice view.
3. Enter voice dial program view.
4. Enter VoIP voice entity view.
5. Enable media flow-around.
Enabling delayed offer to early offer conversion
An INVITE message sent with SDP in the message body defines an early offer, and an INVITE
message sent without SDP in the message body defines a delayed offer. Some carriers 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
1. Enter system view.
2. Enter voice view.
3. Enter voice dial program view.
Command
codec transparent
Command
system-view
voice-setup
dial-program
entity entity-number voip
media flow-around
Command
system-view
voice-setup
dial-program
207
Remarks
Optional.
By default, codec
transparent transfer is
disabled and the SIP trunk
device is involved in the
media negotiation
between the calling and
called parties.
Note that to enable codec
transparent transfer on the
SIP trunk device, execute
this command on all VoIP
voice entities connected to
the public and private
networks.
Remarks
N/A
N/A
N/A
N/A
Optional.
By default, media
flow-around is disabled.
The SIP trunk device acts
as the RTP trunk proxy
and forwards the media
packets.
Remarks
N/A
N/A
N/A