| End-to-End Versus Hop-by-Hop Soft State Refresh for Multi-hop Signaling Systems Recent countries visiting this post |  |
 | 9 | United States |
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| End-to-End Versus Hop-by-Hop Soft State Refresh for Multi-hop Signaling Systems Recent countries visiting this post | |
| 9 | United States |
| 4 | |
| 1 | Russian Federation |