The FRITZ!Box Fon WLAN 7113 combines an ADSL modem, a WLAN router, and a telephone system for VoIP as well as fixed-line calls, in a single device.

Ports and Interfaces
- 2 ports for analog terminal devices like telephones, fax or answering machines
- ADSL line in accordance with ITU 992.3 and ITU 992.5 (Annex A)
- 1 x Ethernet (10/100 Base-T) for connecting computer, notebook, Apple Macintosh, game consoles or other network devices
- WLAN connections in conformance with IEEE 802.11b and 802.11g, as well as 802.11g++ with FRITZ! WLAN USB Stick

ADSL
- Router with firewall, NAT, DHCP and DNS server, DDNS client, UPnP
- ADSL/ADSL2+ modem (Annex A)
- QoS mechanisms, firewall with stateful packet inspection and secure port forwarding
- Simple basic setup via browser interface or TR-069
- Expert Mode option for realizing individual application scenarios WLAN
- WLAN access point in conformance with IEEE 802.11b and 802.11g, as well as 802.11g++ with FRITZ! WLAN USB Stick
- WLAN encryption (WPA and WPA2) with unique key already active upon delivery
- WDS – Wireless Distribution System
- Eco Mode: WLAN transmission power reduction configurable automatically or manually

VoIP
- Internet telephony with existing equipment, even when the computer is off
- Automatic fallback to fixed line when Internet telephony is not possible
- Call routing for customized use of Internet and fixed-line telephony
- Internet telephony SIP conform according to RFC 3261
- Up to 20 VoIP (SIP) accounts
- 2 phone calls simultaneously via Internet
- Intelligent Codec Management (Codecs: G.711, G.726- G.726-40, G.726-24)