diff --git a/roadmaps/cyber-security/content/srtp@_9lQSG6fn69Yd9rs1pQdL.md b/roadmaps/cyber-security/content/srtp@_9lQSG6fn69Yd9rs1pQdL.md
index 4b8484b345dd..1db71da652ee 100644
--- a/roadmaps/cyber-security/content/srtp@_9lQSG6fn69Yd9rs1pQdL.md
+++ b/roadmaps/cyber-security/content/srtp@_9lQSG6fn69Yd9rs1pQdL.md
@@ -4,4 +4,5 @@ Secure Real-time Transport Protocol (SRTP) is a security profile for RTP, the Re
 
 Visit the following resources to learn more:
 
-- [@article@SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP)
\ No newline at end of file
+- [@article@SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP)
+- [@article@Implementing Secure SIP Communications](https://www.ictfax.com/implementing-secure-sip-communications-in-ictfax/)