Specifications

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Linksys IP Phone Administrator Guide
Document Version 3.2
Chapter 5 Linksys ATA Field Reference
Line Tab
VoIP Fallback to PSTN (SPA3102/AG310)
Dial Plan
The default dial plan script for each line is as follows:
(*xx|[3469]11|0|00|[2-9]xxxxxx|1xxx[2-9]xxxxxx|xxxxxxxxxxxx.). The syntax for a dial plan
expression is as follows:
If IP dialing is enabled, one can dial [user-id@]a.b.c.d[:port], where ‘@’, ‘.’, and ‘:’ are dialed by
entering *, user-id must be numeric (like a phone number) and a, b, c, d must be between 0 and 255, and
port must be larger than 255. If port is not given, 5060 is used. Port and User-Id are optional. If the
user-id portion matches a pattern in the dial plan, then it is interpreted as a regular phone number
according to the dial plan. The INVITE message, however, is still sent to the outbound proxy if it is
enabled.
Field Description
Auto PSTN Fallback If enabled, the SPA will automatically route all calls to the PSTN gateway when the Line
1 proxy is down (registration failure or network link down).
The default is yes.
Table 1-35 Dial Plan Script Syntax
Dial Plan Entry Functionality
*xx Allow arbitrary 2 digit star code
[3469]11 Allow x11 sequences
0 Operator
00 Int’l Operator
[2-9]xxxxxx US local number
1xxx[2-9]xxxxxx US 1 + 10-digit long distance number
xxxxxxxxxxxx. Everything else (Int’l long distance, FWD, ...)
Field Description