NEC UNIVERGE SV9100 Manual page 132

132
DTMF Relay (RFC2833)
By default any DTMF tones transmitted across NetLink 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 option to RFC2833 in Easy Edit –
Networking/NetLink/NetLink CODEC Settings (PRG84-34)
Fax Relay (T.38)
By default any Fax tones transmitted across NetLink 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/NetLink/NetLink FoIP Settings. (PRG84-33)
Time Zone Offset
This is used if one or more of the NetLink nodes are in a different time zone than the Primary System. Set
the relavent Hours and minutes offset against each node in Easy Edit –
NetLink/NetLink Systems. (51-02-02/03)
The following features can be adjusted to be in line with the Time Zone Offset: -
Time Display
Incoming/Outgoing Call History
VRS Time Announcement
Date and Time Setting by Service Code
Alarm Clock
It is possible to select which features the Time Zone Offset is applied to. This is done using the Time Zone
Method in Easy Edit –
MAC Address Authorization
The Primary System is able to reject a NetLink connection request if the MAC address of the requesting
system does not match the MAC address set in system programming.
Enable MAC Address Authorization in Easy Edit –
Primary Settings. (51-13-03)
Enter the MAC address to be authorised into the MAC Address item against the system number in Easy
Edit – Advanced Items/VoIP/Networking/NetLink/NetLink Systems. (51-02-04)
The MAC address can be seen by pressing 'Feature 3' on a display telephone on the system that wants to
join the NetLink network.
Netlink Improvement for Buffer Operation
The transmission of data packets via a NetLink connection can be set to Immediate or Buffered.
With Buffered operation the SV9100 will only send the data packets when one of the following conditions is
met:
1. The previous packet has been acknowledged
Advanced Items/VoIP/Networking/NetLink/NetLink Primary Settings. (51-13-02)
Advanced Items/VoIP/Networking/
Advanced Items/VoIP/Networking/NetLink/NetLink
Advanced Items/VoIP/
Advanced Items/VoIP/