ZyXEL Communications IES-1248-51A - Voip and Voiceband Data (VBD); Voip Port Setup Screens

Chapter 45 VoIP
IES-1248-51V User’s Guide
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Tone®. Each of the keys on a DTMF telephone corresponds to a different pair of
frequencies.
Pulse dialing sends a series of clicks to the local phone office in order to dial
numbers.
4
45.1.7.1 VoIP VLAN
Virtual Local Area Network (VLAN) allows a physical network to be partitioned into
multiple logical networks. Only stations within the same VLAN can communicate
with each other.
Your IES-1248-51V can add IEEE 802.1Q VLAN ID tags to voice frames that it
sends to the network. This allows the IES-1248-51V to communicate with an MGC
server that is a member of the same VLAN group. Some ISPs use the VLAN tag to
identify voice traffic and give it priority over other traffic.
45.1.8 VoIP and VoiceBand Data (VBD)
VoIP converts analog voice signal to IP packets using an audio codec. This allows
voice transmission over an IP network.
VoiceBand data (VBD) converts fax and modem signals to IP packets also using an
audio codec.
45.2 VoIP Port Setup Screens
Use these screens to configure the Voice over IP (VoIP) settings of each of the
IES-1248-51V’s ports. You can activate ports, assign H.248, call service and DSP
profiles to each, configure customer information and set the region in which the
IES-1248-51V is to operate.
4. The IES-1248-51V supports DTMF at the time of writing.