Avaya 03-300430 User Manual

For an S8700 IP Connect system, its port networks (PNs) are connected via the customer’s IP 
network. This network cannot be used to transmit timing information between the PNs. The 
complete set of PNs need not be synchronized with each other. Inter-PN bearer traffic is carried 
as VOIP, while the Media Processors’ internal jitter buffers deal with differences in transmission 
rates.
Synchronization is needed for a PN with a public-network digital interface. Each PN with a DS1 
or trunk-side BRI interface must be synchronized with an external timing source to prevent slips 
between that PN and the external circuit-switched network. Each S8700 Media Server 
IP-connected PN needs to operate like a DEFINITY system. Each S8700 IP Connect PN:

●

Potentially needs its own external synchronization reference

●

Is always locked to an external public-network interface or is running locally. 

A typical S8700 IP Connect configuration is shown in 

This figure also shows the far-right S8700 IP Connect system’s PN without public-network 
digital interface. A PN without public-network connectivity runs off of its local IPSI circuit pack’s 
Tone-Clock circuit.

   PN

   PN

   PN

Public Switched Network

Primary

Primary

Secondary

Secondary

IP Network