Calls dropping after 30 seconds on NEC PBX

In some cases, a NEC PBX may drop calls in progress after they have been connected for almost exactly 30 seconds.

This issue is known to affect a broad range of models, including SV8100 , SV9100 and SL1100.

The resolution is to enable "Pendantic Mode SIP" on the device, which can be done by following the instructions below.

Instructions:

Release Notes:

Enable the Fix:

Sip_Cust_Script_84-34-09=1_Enable_Pedantic.pcs

Disable the Fix:

Sip_Cust_Script_84-34-09=0_Disable_Pedantic.pcs