change wording

Author: boris-bazilevskiy

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

@@ -33,15 +33,15 @@ Refer to [Voice routing quickstart](../../quickstarts/telephony/voice-routing-sd
 
 Azure Communication Services direct routing has a routing mechanism that allows a call to be sent to a specific SBC based on the called number pattern.
 
-When you add a direct routing configuration to a resource, all calls made from this resource’s instances (identities) will try a direct routing trunk first. The routing is based on a dialed number and a match in voice routes configured for the resource. 
+When you add a direct routing configuration to a resource, all calls made from this resource’s instances (identities) try a direct routing trunk first. The routing is based on a dialed number and a match in voice routes configured for the resource. 
 
 - If there's a match, the call goes through the direct routing trunk. 
 - If there's no match, the next step is to process the `alternateCallerId` parameter of the `callAgent.startCall` method. 
 - If the resource is enabled for Voice Calling (PSTN) and has at least one number purchased from Microsoft, the `alternateCallerId` is checked. 
 - If the `alternateCallerId` matches a purchased number for the resource, the call is routed through the Voice Calling (PSTN) using Microsoft infrastructure. 
-- If `alternateCallerId` parameter doesn't match any of the purchased numbers, the call will fail. 
+- If `alternateCallerId` parameter doesn't match any of the purchased numbers, the call fails. 
 
-The diagram below demonstrates the Azure Communication Services voice routing logic.
+The diagram demonstrates the Azure Communication Services voice routing logic.
 
 :::image type="content" source="../media/direct-routing-provisioning/voice-routing-diagram.png" alt-text="Diagram of outgoing voice routing flowchart.":::
 
@@ -55,10 +55,10 @@ The following examples display voice routing in a call flow.
 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, then 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 neither SBC is available, the call is dropped.
 
 ### Two routes example:
-If you created one voice route with a pattern `^\+1(425|206)(\d{7})$` and added `sbc1.contoso.biz` and `sbc2.contoso.biz` to it, and then created a second route with the same pattern with `sbc3.contoso.biz` and `sbc4.contoso.biz`. In this case, when the user makes a call to `+1 425 XXX XX XX` or `+1 206 XXX XX XX`, the call is first routed to SBC `sbc1.contoso.biz` or `sbc2.contoso.biz`. If both sbc1 and sbc2 are unavailable, the route with lower priority will be tried (`sbc3.contoso.biz` and `sbc4.contoso.biz`). If none of the SBCs of the second route are available, the call is dropped.
+If you created one voice route with a pattern `^\+1(425|206)(\d{7})$` 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`. 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 will be tried (`sbc3.contoso.biz` and `sbc4.contoso.biz`). If none of the SBCs of a second route are available, the third route will be 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.
@@ -67,8 +67,8 @@ If you created one voice route with a pattern `^\+1(425|206)(\d{7})$` and added
 > In all the examples, if the dialed number does not match the pattern, the call will be dropped unless there is a purchased number exist for the communication resource, and this number was used as `alternateCallerId` in the application. 
 
 ## Managing inbound calls
-For general inbound call management use [Call Automation SDKs](../call-automation/incoming-call-notification.md) to build an application that listen for and manage inbound calls placed to a phone number or received via ACS direct routing. 
-Omnichannel for Customer Service customers please refer to [these instructions](/dynamics365/customer-service/voice-channel-inbound-calling).
+For general inbound call management use [Call Automation SDKs](../call-automation/incoming-call-notification.md) to build an application that listens for and manage inbound calls placed to a phone number or received via ACS direct routing. 
+Omnichannel for Customer Service customers refer to [these instructions](/dynamics365/customer-service/voice-channel-inbound-calling).
 
 ## Next steps