Cisco SPA112 Administration Guide

Advanced Options for Voice Services
Configuring Dial Plans
Administration Guide 143
9
0 | [49]11 This example includes two digit sequences, separated by the
pipe character. The first sequence allows a user to dial 0 for an operator.
The second sequence allows the user to enter 411 for local information or
911 for emergency services.
Acceptance and Transmission of the Dialed Digits
When a user dials a series of digits, each sequence in the dial plan is tested as a
possible match. The matching sequences form a set of candidate digit sequences.
As more digits are entered by the user, the set of candidates diminishes until only
one or none are valid. When a terminating event occurs, the ATA either accepts the
user-dialed sequence and initiates a call, or else rejects the sequence as invalid.
The user hears the reorder (fast busy) tone if the dialed sequence is invalid.
The following table explains how terminating events are processed.
Terminating Event Processing
The dialed digits do not
match any sequence in
the dial plan.
The number is rejected.
The dialed digits exactly
match one sequence in
the dial plan.
• If the sequence is allowed by the dial plan, the
number is accepted and is transmitted
according to the dial plan.
• If the sequence is blocked by the dial plan, the
number is rejected.
A timeout occurs. The number is rejected if the dialed digits are not
matched to a digit sequence in the dial plan within
the time specified by the applicable interdigit timer.
• The Interdigit Long Timer applies when the
dialed digits do not match any digit sequence
in the dial plan. Default setting: 10 seconds
• The Interdigit Short Timer applies when the
dialed digits match one or more candidate
sequences in the dial plan. Default setting: 3
seconds

Cisco SPA112 Specifications

General

Supported network protocols	IPv4, IPv6, ARP, DNS, SRV, DHCP, PPPoE, ICMP, TCP, UDP, RTP, RTCP, SNTP
DHCP client	Yes
VPN support	802.1p
Security algorithms	SSL/TLS
Authentication method	SIP
Modem (RJ-11) ports	2
Ethernet LAN (RJ-45) ports	1
Voice codecs	G.711, G.726, G.729
Certification	FCC, CE, ICES, A-Tick, RoHS, UL
Fax compatibility	T.38
Output current	2 A
Output voltage	5 V
AC input voltage	100-240 V
AC input frequency	50 - 60 Hz
Storage temperature (T-T)	-25 - 70 °C
Operating temperature (T-T)	0 - 45 °C
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Width	101 mm
Height	28 mm
Weight	153 g