Datasheet

Coding profile command list
Vpacket 5100/6100 Series H.323 Telephony 33
Setting the packet-level redundancy
You can specify the packet-level redundancy for low-speed data transmissions (the T.30
handshaking information) for a fax coding profile by issuing the set coding [prof_id]
fax_ls_redundancy command. The method used involves assembling an additional number of
prior packets after the primary with decreasing sequence numbers. For example, if each payload
contains a primary and two or more secondary fields, this sequencing protects against a loss of
two consecutive UDP Transport Layer (UDPTL) packets.
Syntax: set coding [prof_id] fax_ls_redundancy <value>
Argument:
value 0, 1, 2, 3, 4 or 5
Example:
In this example, the fax packet-level redundancy is set to 2.
Setting the high-speed redundancy
You can specify the packet-level redundancy for high-speed data transmissions (the T.4 image
data) for a fax coding profile by issuing the set coding [prof_id] fax_hs_redundancy
command.
Syntax: set coding [prof_id] fax_hs_redundancy <0, 1 or 2>
Argument:
0, 1 or 2 number of repeat packets to be sent
Example:
In this example, the redundancy is set to 1.
VPacket# tel
telephony# set coding 1 fax_ls_redundancy 2
OK
telephony#
VPacket# tel
telephony# set coding 1 fax_hs_redundancy 1
OK
telephony#