Update toc.yml

updating TOC to include links to number lookup and CNAM process

Author: henikaraa

articles/communication-services/toc.yml

@@ -821,6 +821,8 @@ items:
     href: concepts/pstn-pricing.md
   - name: Phone number types
     href: concepts/numbers/number-types.md
+  - name: Define your caller identity
+    href: concepts/telephony/how-to-manage-your-calling-identity.md
   - name: Country availability
     href: concepts/numbers/sub-eligibility-number-capability.md
   - name: Trial phone numbers
@@ -839,6 +841,8 @@ items:
       href: concepts/numbers/number-lookup-concept.md
     - name: Number Lookup SDK
       href: concepts/numbers/number-lookup-sdk.md
+    - name: Try Number Lookup
+      href: concepts/telephony/try-number-lookup.md
   - name: Direct routing
     items:
     - name: Connect to existing telephony
@@ -1382,4 +1386,4 @@ items:
     - name: United Kingdom
       href: concepts/numbers/phone-number-management-for-united-kingdom.md
     - name: United States
-      href: concepts/numbers/phone-number-management-for-united-states.md
+      href: concepts/numbers/phone-number-management-for-united-states.md