Code Blue
•
259 Hedcor Street
•
Holland, MI 49423 USA
•
800.205.7186
•
www.codeblue.com
GU-137-B
page 14 of 40
IP1500/2500
User Guide
Configuring Media Settings
For the SIP protocol, you can specify a port range from which the IP1500/2500 will select IP ports to
offer to the other system for use with RTP communication.
The IP1500/2500 speakerphone can use any one of a suite of codecs for voice communication.
Which codec is used is dependent on negotiation with the remote system, but you can use Codec
Selection to specify a list of preferred codecs that will be offered in negotiation.
•
To add codecs to the
Preferred
list, highlight them in the
Available
list and click
Add.
•
To remove codecs from the
Preferred
list, highlight them and click
Remove.
•
To change the order preferred codecs are offered, highlight them and click either
Move Up
or
Move Down
to reorganize them.
Note that some codecs corrupt DTMF tones, e.g. G.729. If RFC2833 out-of-band DTMF signaling is
not in use, be sure to configure your codecs appropriately or you may not be able to use in-call com
-
mands. Be sure to test your configuration to make sure all features are available.