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Why are inbound VoIP calls dropping precisely at the thirty-second mark on our Cisco ATA 191 adapters, and what specific SIP keep-alive or UDP timeout adjustments do I need to make in our FortiGate firewall?

ChatGPTgpt-62 queries11/1/2026
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The searches the AI actually ran for this prompt.

SEED QUERY
Why are inbound VoIP calls dropping precisely at the thirty-second mark on our Cisco ATA 191 adapters, and what specific SIP keep-alive or UDP timeout adjustments do I need to make in our FortiGate firewall?
2 real searches · 1 real-search pass
Cisco ATA 191 administration guide NAT keep alive SIP settings keep alive intervalGoogle ↗
OBSERVEDInstruction
FortiGate FortiOS UDP session timeout default SIP ALG session helper SIP inspection configuration official documentationGoogle ↗
OBSERVEDInstruction

Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.

Query classes

Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.

ChatGPT real searches (2)
Short factOther / navigationalComparisonConsequenceReasonDefinitionInstruction100%Yes / no

Classes come from the query-classifier (a local Laya model). 2 of 2 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.

Searches and sources

Queries

2 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
Cisco ATA 191 administration guide NAT keep alive SIP settings keep alive interval
OBSERVED
Google ↗
AI Mode ↗
—Instruction——1x
of 1
FortiGate FortiOS UDP session timeout default SIP ALG session helper SIP inspection configuration official documentation
OBSERVED
Google ↗
AI Mode ↗
—Instruction——1x
of 1