System information
Table Of Contents
- Getting Started with the Cisco SPA100 Series Phone Adapters
- Quick Setup for Voice over IP Service
- Configuring the Network
- Configuring Voice
- Administration Settings
- Viewing the Status and Statistics
- Frequently Asked Questions
- Using the IVR for Administration
- Installation Options
- Where to Go From Here
Configuring Voice
Getting Started with Voice Services
Cisco SPA100 Series Phone Adapters Administration Guide 35
4
Understanding Voice Port Operations
The ATA allows calls to be made from locally connected analog handsets or fax
machines by using SIP-based Internet phone services.
The ATA maintains the state of each call made through the PHONE port and makes
the proper reaction to user input events (such as on/off hook or hook flash)
Because the ATA uses the Session Initiation Protocol (SIP), it is compatible with
most Internet Telephony Service Provider (ITSP) offerings.
ATA Voice Fe ature s
The ATA is equipped with fully featured, programmable voice ports that can be
custom provisioned within a wide range of configuration parameters. The
following sections describe the factors that contribute to voice quality:
• Supported Codecs
• SIP Proxy Redundancy
• Other ATA Voice Features
Services
Ready
Platform
Telephone/fax
Ethernet
V
V
V
Phone
V
V
PSTN
Internet
Service Provider
VoIP Infrastructure
SIP proxy
IP
Voice
gateway
236741