Multi-Tech Systems MULTIVOIP MVP210/410/810 User Manual

Page of 144
Chapter 3: Software Installation 
Multi-Tech 
Systems, 
Inc. 
     
 
 
25 
Call Signaling 
There are three choices for Call Signaling: H.323, SIP and SPP, the –SS models only support SIP and the –FX 
models support SIP and SPP, but not H.323
. It is best to select one of these as the protocol to be used, rather 
than mixing them. Single Port Protocol (SPP) is a non-standard protocol created by Multi-Tech that allows 
dynamic IP allocation. Generally, the default settings will work for most users and the individual parameters may 
be changed if the need arises. Additional details for all settings are found in Chapter 4. 
 
Figure 3-10: Signaling Protocols