Using extended pings with TOS tags to troubleshoot VOIP?

Our Gatekeepers are 2000 miles from the IP phones.

I am attempting to use the extended ping feature of a Cisco router to see if the layer 3 DSCP 46 tag is staying on the packet and where the jitter and packet loss are occurring?

Does the following tell me anything or not?

The gatekeeper is 1.2.3.4 and I am pinging from the other side of the country where the ip phones are.

Extended ping: 1000 times without TOS and with TOS set to 184 EF 46

I calculated the jitter myself by subtracting the min from the max times.

Tracing the route to ping from  1.2.3.4

  1 2.3.4.5 0 msec 0 msec 4 msec         "no tos min/avg/max = 1/1/12 ms"
                                                          "with tos min/avg/max = 1/1/12 ms" jitter 11ms
 

  2 3.4.5.6     12 msec 12 msec 12 msec  "no tos min/avg/max = 8/12/32 ms"
                                                             "with tos min/avg/max = 8/11/32 ms" jitter 24ms

  3 4.5.6.7      12 msec 16 msec 20 msec "no tos min/avg/max = 12/14/36 ms"
                                                             "with tos min/avg/max = 12/14/36 ms" jitter 24ms
 

  4 5.6.7.8      16 msec 12 msec 12 msec "no tos min/avg/max = 12/14/36 ms"
                                                             "with tos min/avg/max = 12/14/36 ms" jitter 24ms
 

  5 6.7.8.9     72 msec 72 msec 76 msec "no tos min/avg/max = 68/72/112 ms"
                                                            "with qos min/avg/max = 68/72/104 ms" jitter 36ms
 

  6 10.11.12.13        72 msec 68 msec 68 msec " min/avg/max = 68/72/92 ms"
                                                              "with tos min/avg/max = 68/72/88 ms" jitter 20ms


  7 1.2.3.4 72 msec 72 msec 72 msec      "no tos min/avg/max = 68/72/88 ms"
                                                              "with tos min/avg/max = 68/72/88 ms" jitter 20ms