SH time

Short hold time: This value specifies the number of seconds that pass before a connection to this remote site is terminated if no data is being transferred.

SNMP ID:
2.2.19.2 
Telnet path:
Setup > WAN > DSL-Broadband-Peers
Possible values:

0 … 9999 Seconds

Special values:
9999
Connections are established immediately and without a time limit.
Default:
0