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An H.323 IP telephone can be either in use with possible customized settings or out of the box with factory default settings. An out of the box telephone requires accessing the manual programming mode early in the process and setting the Signaling Protocol Identifier (SIG) parameter to “SIP.” Converting to SIP early avoids having to first load H.323 software, log in, and then invoke the “in use” process to load the SIP software.
NOTE: For information about the SIG parameter, see “Choosing the Right Application File and Upgrade Script File” in the 4600 Series IP Telephone LAN Administrator Guide (Document Number 555-233-507). For information on setting or changing the SIG parameter, see Signaling Protocol Identifier.
| Environment |
To convert this type of telephone |
To this type of telephone |
Then: |
|---|---|---|---|
| H.323-centric |
H.323 in use |
SIP |
Perform the Mute SIG procedure to change the SIG parameter value from “default” to “2" (SIP).” For information, see Signaling Protocol Identifier. Press * to save the SIG parameter change. Restart the telephone as covered in Restart the Telephone. |
| H.323-centric |
H.323 factory set |
SIP |
Connect the telephone to a power source and to the network. As soon as you see the DHCP prompt, press * to enter manual programming mode. Press # multiple times to accept the existing values until the telephone displays “Enter command.”. Perform the Mute SIG procedure and change the value from “default” to “2" (SIP). Press * to save the SIG parameter change. Restart the telephone as covered in Restart the Telephone. |
| H.323-centric |
SIP |
H.323 |
Perform the Mute SIG procedure to change the SIG parameter value from “2" (SIP) to “default” (H323). For information, see Signaling Protocol Identifier. Press * to save the SIG parameter change. Restart the telephone as covered in Restart the Telephone. Save the change & restart telephone. |
| SIP-centric |
SIP |
H.323 |
Perform the Mute SIG procedure to change the SIG parameter value from “default” to “1" (H323). For information, see Signaling Protocol Identifier. Press * to save the SIG parameter change. Restart the telephone as covered in Restart the Telephone. |
| SIP-centric |
H.323 in use |
SIP |
Perform the Mute SIG procedure to change the SIG parameter value from “1" (H323) to “default” (SIP). For information, see Signaling Protocol Identifier. Press * to save the SIG parameter change. Restart the telephone as covered in Restart the Telephone. |
| SIP-centric |
H.323 factory set |
SIP |
No action is required because the Signaling Protocol Identifier (SIG) defaults to SIP. Upon power-up & network connection, the telephone automatically downloads the proper SIP files from SES/CM. |
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