Appendix A Product Specifications

Table 168

Voice Features

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

 

SIP version 2 (Session Initiating Protocol RFC 3261)

Features

 

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)

 

 

 

Wireless Features (Wireless Devices Only)

Table 169 Wireless Features

IEEE 802.11g+ Wireless LAN

Your device supports IEEE 802.11g+ to allow any ZyXEL WLAN

 

devices that also support IEEE 802.1g+ to associate with the ZyXEL

 

Device at higher transmission speeds than with standard IEEE

 

802.11g.

 

 

External Antenna

The ZyXEL Device is equipped with an attached antenna to provide a

 

clear radio signal between the wireless stations and the access

 

points.

 

 

Wireless LAN MAC Address

Your device can check the MAC addresses of wireless stations

Filtering

against a list of allowed or denied MAC addresses.

 

 

WEP Encryption

WEP (Wired Equivalent Privacy) encrypts data frames before

 

transmitting over the wireless network to help keep network

 

communications private.

 

 

Wi-Fi Protected Access

Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i

 

security standard. Key differences between WPA and WEP are user

 

authentication and improved data encryption.

 

 

WPA2

WPA 2 is a wireless security standard that defines stronger

 

encryption, authentication and key management than WPA.

 

 

378

 

P-2602H(W)(L)-DxA User’s Guide