14.2. SIP Subscriber 
From OpenScape 4000 V8 the preferred method for configuring
SIP Subscribers is UFIP. Should any feature discrepancy be noticed
to prior S0PP configuration then it should be reported via customer
ticket.
Up to 240 native SIP subscribers can be configured on the common
gateway HG 3500 and the virtual HG 3500. The total number of 240
IP subscribers per common gateway (CGW) refers to HFA and SIP subscribers
(e.g. 200 HFA and 40 SIP subscribers).
SIP subscriber can also be connected over the Internet - see Chapter 14, “Secure Remote Subscriber”.