AT Commands, S-Registers, and Result Codes
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S34 Maximum Escape Sequence Length
S44 POTS Port Ring Frequency
S45 Use Dial Tone From Central Office
S46 Pulse-Dial Recognition
S49 POTS Port Dial Tone Gain
S50 Caller Line ID (CLI)
S51 POTS Port Dial Tone Suppression
S52 Auto-Protocol Detection
S53 Maximum X.75 Buffer Size
S54 Force 56Kbps B-Channel Data Rate
S55 Information Transfer Capability for POTS Port Calls
S56 Calling Party Number Information Element Settings
S57 Called Party Number Information Element Settings
S58 Client-side PPP/ML-PPP Authentication Protocol Negotiation
S59 Dynamic Bandwidth Allocation (DBA) Scheme
S60 Bandwidth-On-Demand
(BOD) High Threshold Sampling Period
S61 Bandwidth-On-Demand (BOD) High Throughput Threshold
S62 Bandwidth-On-Demand (BOD) Low Threshold Sampling Period
S63 Bandwidth-On-Demand (BOD) Low Throughput Threshold
S64 Call Bumping (CB)
S65 POTS Call Bump Forwarding Delay
S66 Country Selections for POTS Ring Signal
S67 Single or Dual Cadence POTS Ring Signal
S68 POTS Ring Signal First Active Duration
S69 POTS Ring Signal First Idle Duration
S70 POTS Ring Signal Second Active Duration
S71 POTS Ring Signal Second Idle Duration
S73 MultiLink Endpoint Discriminator Type
S74 Maximum CLEAR Buffer Size
S80 Persistent DTR Dialing Delay
S81 Link Setup Timeout
S84 Data to Terminal Delay
S85 Data to B-channel Delay
S87 INS64 Analog Call Origination Delay
S154 B-Channel Answer Rate