Hardware handshake value for Nokia 7110

Hi,

I'm using latest cvs kannel with Nokia 7110. The kannel gives following
message, but SMSC starts successfully.

2002-03-25 17:23:00 [5] DEBUG: AT2[nokiaphone]: --> AT+IFC=2,2^M
2002-03-25 17:23:00 [5] DEBUG: AT2[nokiaphone]: <-- ERROR
2002-03-25 17:23:00 [5] INFO: AT2[nokiaphone]: cannot enable hardware
handshak

My kannel conf has

# Default from modems.conf

group = modems
id = nokiaphone
name = "Nokia Phone"
detect-string = "Nokia Mobile Phone"
need-sleep = true
keepalive-cmd = "AT+CBC;+CSQ"

# Nokia 7110

group = smsc
smsc = at2
smsc-id = nokiaphone
modemtype = nokiaphone
device = /dev/ttyS0
speed = 19200.
#enable-hwhs = "AT+IFC=2,2"

Hardware handshake value is default.Anybody give me correct value for above
or this does not bother much to functioning of kannel.

Shridhar Raju