NEC UNIVERGE SV9100 Manual page 139

DTMF Relay (RFC2833)
By default any DTMF tones transmitted across K-CCIS will be sent as audio tones in the speech path. It is
possible that these tones can be misinterpreted by the receiving device because of packet loss or errors
due to the codec compression.
DTMF relay is a way of converting the DTMF tone into a signal then sending the signal across the IP
network instead of the actual tone.
To enable this feature set the DTMF Relay Mode for Networking using Profile 1 to RFC2833 or H.245 (all
nodes should have the same setting) in Easy Edit –
Configuration/IPL DTMF Settings/DTMF Setup (PRG84-34)
Fax Relay
By default any Fax tones transmitted across AspireNet will be sent as audio tones in the speech path. It is
possible that these tones can be misinterpreted by the receiving device because of packet loss or errors
due to the codec compression.
Fax relay is a way of converting the Fax tones into a signal then sending the signal across the IP network
instead of the actual tone.
To enable this feature set the Fax Relay Mode option to Enabled in Easy Edit –
Networking/AspireNet CVM/AspireNet Setup/AspireNet FoIP Settings (PRG84-33)
Note:
The SV9100 uses T.38 for its Fax Relay protocol but the Aspire uses a proprietary protocol. This means
that Fax Relay cannot be used between the two systems.
SV9100
Node 2
Aspire
Configuration Example
The examples below shows the basic programming required for an SV9100 AspireNet network. Each
system is on a separate network.
No other advanced options are included here.
Example A
This example shows the configuration necessary for an AspireNet over IP 3 node network.
System A
10-12-01 192.168.0.10
10-12-02 255.255.0.0
10-12-03 172.16.0.1
10-12-09 172.16.0.10
10-12-10 255.255.0.0
Advanced Items/VoIP/General Settings/VoIP
SV9100
Pass
Fail
System B
10-12-01 192.168.0.10
10-12-02 255.255.0.0
10-12-03 172.17.0.1
10-12-09 172.17.0.10
10-12-10 255.255.0.0
Part 2: VoIP Manual
Advanced Items/VoIP/
Node 1
Aspire
Fail
Pass
System C
10-12-01 192.168.0.10
10-12-02 255.255.0.0
10-12-03 172.18.0.1
10-12-09 172.18.0.10
10-12-10 255.255.0.0
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