SimPro Anti-Blocking Pricing

SimPro is an advanced call screening and filtering solution that prevents test calls, spam calls, and anti-fraud detection calls from reaching your GSM gateway SIM cards.[cite: 5]

It blocks test calls from anti-fraud companies using whitelist/blacklist filtering, A+B number verification, dynamic blacklists for repetitive low-ASR numbers, IVR DTMF authentication, and HLR/messenger lookups to verify caller legitimacy.[cite: 5]

A+B number filtering verifies both the caller ID (A-number) and the called number (B-number) against a trusted database before allowing the call to reach your SIM card.[cite: 5]

IVR authentication requires incoming callers to press a specific DTMF digit before the call is connected to your SIM card, effectively blocking automated test systems and robocalls.[cite: 5]

Dynamic blacklists automatically identify and block numbers that exhibit suspicious patterns such as repetitive calling with low ASR, short call durations, or unusual calling frequencies.[cite: 5]

Yes, SimPro is compatible with all major softswitches including VOS3000, Asterisk, FreePBX, StarTrinity, and custom SIP platforms.[cite: 5]

When properly configured, SimPro improves overall ASR and ACD by removing test calls and spam that artificially deflate your metrics.[cite: 5]

SIM blocking is primarily caused by test calls from anti-fraud companies and suspicious CDR activity detected by the mobile operators, such as abnormal in/out ratios or high volumes of short calls.[cite: 5]

Human behavior simulation involves optimizing operations like moving cards between locations, sending SMS, making calls between SIM cards, and linking specific caller/callee numbers to specific SIMs to mimic real human usage.[cite: 5]

When a test call connects to your SIM, the anti-fraud system records the SIM's IMSI, IMEI, and BTS location, which is then shared across operator networks leading to rapid, sometimes mass, blocking.[cite: 5]

In aggressive markets like Africa and the Middle East, unprotected SIM cards may be blocked within 24 to 72 hours.[cite: 5]

SimPro users typically achieve 5x to 10x longer SIM lifetimes in high-risk markets by eliminating the test calls that trigger blocking.[cite: 5]

No. All our pricing plans are fully transparent. The monthly subscription fee covers full access to the filtering infrastructure and ongoing threat intelligence updates.

Yes, you can easily scale up to a higher channel capacity tier via your client portal as your termination traffic grows.

Yes, SimPro users benefit from shared threat intelligence across the user network, receiving automatic updates about new test call numbers and anti-fraud tactics.[cite: 5]

While SimPro primarily stops test calls, it keeps your SIMs off the radar of anti-fraud systems, which reduces the likelihood of targeted IMSI catcher deployment against your specific BTS locations.[cite: 5]

Yes, the built-in CDR analyzer processes call history to automatically build whitelists from successful calls with good ACD.[cite: 5]

Our Enterprise tier offers unlimited filtering rules, allowing for complex regex patterns, prefix-based, and suffix-based matching without arbitrary limits.[cite: 5]

Filtering latency is exceptionally low, typically under 50ms per call for whitelist/blacklist checks, and under 200ms when utilizing external HLR lookups.[cite: 5]

Yes, we offer a 30-day money-back guarantee. If SimPro does not significantly improve your SIM lifetimes, you are entitled to a full refund.