Merge pull request #284992 from boris-bazilevskiy/doc-update-may24

fixed regex example

Author: prmerger-automator[bot]

articles/communication-services/concepts/telephony/direct-routing-provisioning.md

@@ -86,7 +86,7 @@ If you created one voice route with a pattern `^\+1(425|206)(\d{7})$` and added
 If you created one voice route with a pattern `^\+1(425|206)(\d{7})$` and added `sbc1.contoso.biz` and `sbc2.contoso.biz` to it, and then created a second route with the same pattern with `sbc3.contoso.biz` and `sbc4.contoso.biz`. In this case, when the user makes a call to `+1 425 XXX XX XX` or `+1 206 XXX XX XX`, the call is first routed to SBC `sbc1.contoso.biz` or `sbc2.contoso.biz`. If both sbc1 and sbc2 are unavailable, the route with lower priority is tried (`sbc3.contoso.biz` and `sbc4.contoso.biz`). If none of the SBCs of the second route are available, the call is dropped.
 
 ### Three routes example:
-If you created one voice route with a pattern `^\+1(425|206)(\d{7})$` and added `sbc1.contoso.biz` and `sbc2.contoso.biz` to it, and then created a second route with the same pattern with `sbc3.contoso.biz` and `sbc4.contoso.biz`, and created a third route with `^+1(\d[10])$` with `sbc5.contoso.biz`. In this case, when the user makes a call to `+1 425 XXX XX XX` or `+1 206 XXX XX XX`, the call is first routed to SBC `sbc1.contoso.biz` or `sbc2.contoso.biz`. If both sbc1 nor sbc2 are unavailable, the route with lower priority is tried (`sbc3.contoso.biz` and `sbc4.contoso.biz`). If none of the SBCs of a second route are available, the third route is tried. If sbc5 is also not available, the call is dropped. Also, if a user dials `+1 321 XXX XX XX`, the call goes to `sbc5.contoso.biz`, and it isn't available, the call is dropped.
+If you created one voice route with a pattern `^\+1(425|206)(\d{7})$` and added `sbc1.contoso.biz` and `sbc2.contoso.biz` to it, and then created a second route with the same pattern with `sbc3.contoso.biz` and `sbc4.contoso.biz`, and created a third route with `^\+1(\d{10})$` with `sbc5.contoso.biz`. In this case, when the user makes a call to `+1 425 XXX XX XX` or `+1 206 XXX XX XX`, the call is first routed to SBC `sbc1.contoso.biz` or `sbc2.contoso.biz`. If both sbc1 nor sbc2 are unavailable, the route with lower priority is tried (`sbc3.contoso.biz` and `sbc4.contoso.biz`). If none of the SBCs of a second route are available, the third route is tried. If sbc5 is also not available, the call is dropped. Also, if a user dials `+1 321 XXX XX XX`, the call goes to `sbc5.contoso.biz`, and it isn't available, the call is dropped.
 
 > [!NOTE]
 > Failover to the next SBC in voice routing works only for response codes 408, 503, and 504.