You can change the "Repeat count" parameter to 4 in the "ping" command. Below is the syntax of ping command.ping [if_name] host [data pattern] [repeat count] [size bytes] [timeout seconds] [validate]

Is it initial setup or has been working since long? Did you try reloading VG224?

These symptoms are possible on any hardware platform supported by version 12.4(11)T. All rebuilds of Cisco IOS release 12.4(11)T are affected (e.g. 12.4(11)T1, 12.4(11)T2, ...).http://www.cisco.com/en/US/ts/fn/620/fn62854.html

Check the bug: CSCdx90759: Cat4200v2.0:No monitor option available for FXO/FXS ports.

Unfortunately this feature is not available. If your IP Phone is running SCCP, then there is no way to be able to telnet to the IP Phones and change config.