Outbound calling is tougher than ever. Even with high-quality leads and trained agents, connect rates are dropping industry-wide. Why? Because carriers are blocking or labeling your calls before they even reach the customer
This guide explains the real reasons behind low connect rates—and the proven strategies to protect your caller ID reputation and improve delivery in 2025
Key Insights from the Guide:
Why Calls
Don't Connect
- Carriers now block or divert calls based on patterns, not just legality.
- Even legitimate calls can appear as “Spam Likely".
How Carriers
Block Calls
- Spam Labeling: Call goes through, but flagged as spam—most people ignore.
- Call Blocking: Call never reaches the recipient at all.
STIR/SHAKEN: What It Really Does
- ✅ Verifies caller ID and builds trus
- 🚫 Doesn’t stop calls from being labeled or blocked
Metrics That Reveal Problems
- ASR (Answer-Seizure Ratio): Sudden drops may mean blocking.
- ACD (Average Call Duration): Extremely short calls often signal fraud or filtering.
Caller ID Reputation Matters
- Hurts your score: high call volumes, short calls, spam complaints.
- Protect it: register with the Free Caller Registry, rotate responsibly, monitor for flags.
