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QSIG-MD Private Network Services

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QSIG-MD Private Network Services

Depending on the configuration of your telephone system, this 

may be integrated within a QSIG-MD private network, which 

groups various MD Evolution systems within your company.
These systems may be connected by:
•

Digital tie lines to a telecommunications operator. These digital tie 

lines are therefore reserved for private calls within your company’s 

network.

•

Your company’s Intranet network, local area network (LAN), or 

wide area network (WAN). In this case private telephone calls 

between network calls are transmitted over the IP network, at the 

same time as data that is exchanged between your company’s 

various sites.

In the second case, there are two possible techniques:
•

The first, called IP-Trunking, uses proprietary messages that 

are exchanged over the IP network. This applies when up to 

7 MD Evolution systems are networked.

•

The second technique, called IP-Networking, uses standardised 

IP H.323 messages that are exchanged over the IP network. 

This applies for a wide area network, which may include more 

than 100 MD Evolution systems.

No matter the case and regardless of the private call supports used 

within your company’s private network, the majority of the 

telephone services available locally between two of your facility’s 

internal users become available to the private users connected 

through remote nodes.
Moreover, if IP-Trunking networking occurs over an IP network, 

a non-IP hand-over service is also available for occasions where 

there may be a downgrade in the voice transmission over the IP 

network.