Update sip-trunk.mdx

sahilsuman933 · web-flow · commit a3ad758dfc19 · 2025-06-20T05:05:54.000+05:30
diff --git a/fern/advanced/sip/sip-trunk.mdx b/fern/advanced/sip/sip-trunk.mdx
@@ -12,6 +12,7 @@ To allow SIP signaling and media between Vapi and your SIP provider, you must al
 
 - 44.229.228.186/32
 - 44.238.177.138/32
+- 172.31.9.106/32
 
 These IPs are used exclusively for SIP traffic. 
 
