NEC Univerge SV8100 Features And Specifications Manual page 808

Issue 11.0
After starting SIP negotiation for the call, if any RTP packet can't be received from the

terminal within 10 seconds, the call is dropped and the IP Terminal displays the following:
Default Setting
None
System Availability
Terminals
DT700 V3.0.0.0 or higher
Required Software
Version 3000 or higher
Required Component(s)
PZ-32 IPLB, PZ-64 IPLB or PZ-128 IPLB Daughter Board installed

LK-SYS-V3000 Enhancements-LIC or higher (US)

LK-SYS-NAPT-LIC (Other)
Related Features
None
2 - 776
UNIVERGE SV8100
IP Multiline Station (SIP)