Cisco SPA2102-SF Administration Guide - Page 214

ATA Voice Field Reference PSTN Line page (SPA3102) B PSTN Ring Thru Delay Delay in seconds before starting to ring thru Line 1 after the PSTN starts ringing. In order for Line 1 to have the caller-id information, the delay should be set to larger than the delay required to complete the PSTN caller-id delivery (such as 5s). The range is 0-255. PSTN-To-VoIP Call Max Dur The default is 5. Limit on the duration of a PSTN-To-VoIP Gateway Call. Unit is in seconds. 0 means unlimited. The range is 02147483647. VoIP-To-PSTN Call Max Dur The default is 0. Limit on the duration of a VoIP-To-PSTN Gateway Call. Unit is in seconds. 0 means unlimited. The range is 02147483647. The default is 0. PSTN Dialing Delay Delay after hook before the SPA dials a PSTN number. The range is 0-255. The default is 1. PSTN Ring Timeout Delay after a ring burst before the SPA decides that PSTN ring has ceased. The range is 0-255. The default is 5. PSTN Dial Digit Len Determines the on/off time when transmitting digits through the FXO port. The syntax is on-time/off-time, where on-time and off-time are expressed in seconds with up to two decimal places, within the permitted range, which is from .05 to 3.00. PSTN Hook Flash Len The default is .1/.1. If this value is blank, the default is used. The length of the hook flash in seconds. During a PSTN-toVoIP gateway call, the ATA device processes the out-ofband hook flash signal sent from the VoIP peer through a hook-flash (momentary on-hook signal) on the FXO port. This allows the VoIP peer to initiate a three-way conference call and subsequent call transfer. The duration of the on-hook signal can be configured using this parameter. The default is 0.25. The permitted range is limited to 0.02 to 1.6 seconds. Cisco Small Business ATA Administration Guide 214