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Chapter 21 Product Specifications
User’s Guide
243
SIP ALG Your device is a SIP Application Layer Gateway (ALG). It allows VoIP
calls to pass through NAT for devices behind it (such as a SIP-based
VoIP software application on a computer).
Other Voice
Features
SIP version 2 (Session Initiating Protocol RFC 3261)
SDP (Session Description Protocol RFC 2327)
RTP (RFC 1889)
RTCP (RFC 1890)
Voice codecs (coder/decoders) G.711, G.726, G.729
Fax and data modem discrimination
DTMF Detection and Generation
DTMF: In-band and Out-band traffic (RFC 2833),(PCM), (SIP INFO)
Point-to-point call establishment between two IADs
Quick dialing through predefined phone book, which maps the phone
dialing number and destination URL.
Flexible Dial Plan (RFC3525 section 7.1.14)
Table 107 Star (*) and Pound (#) Code Support
*0 Wireless Operator Services
*2 Customer Care Access
*66 Repeat Dialing
*67 Plus the 10 digit phone number to block Caller ID on a single call
basis
*69 Return last call received
*70 Followed by the 10 digit phone number to cancel Call Waiting on a
single call basis
*72 Activate Call Forwarding (*72 followed by the 10 digit phone number
that is requesting call forwarding service)
*720 Activate Call Forwarding (*720 followed by the 10 digit phone
number that is requesting deactivation of call forwarding service)
*73 Plus the forward to phone number to activate Call Forwarding No
Answer (no VM service plan)
*730 Deactivate Call Forwarding No Answer
*740 Plus the forward to phone number to activate Call Forwarding Busy
(no VM service plan)
*911/911 Emergency phone number (same as dialing 911)
*411/411 Wireless Information Services
Table 108 Environmental and Hardware Specifications
FEATURE DESCRIPTION
Operating Temperature 0°C to 45°C
Storage Temperature -25°C to 55°C
Table 106 Voice Features