Call Pilot Keep Alive Timer

We are implementing Call Pilot and have noticed that the server sends out KeepAliveTimer, or KAT, packets at about 5 packets per second, (including the clients response this means 10 PPS). From what I read on other groups the this is needed for the sql server to clean up stale sessions. This is a huge burden on the server, with 1000+ concurrent sessions, the network, and for remote clients running the IP softphone from home offices. I modified the registry setting for this parameter from

HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\KeepAliveTime=00000000 (hex) (0 seconds before transmitting the next KAT) to

HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\KeepAliveTime=000DBBA0 (hex) (15 Minutes before sending the next KAT )

and this seemed to clear it up.

Here's a sniffer trace from before-

30 1.406936 client host TCP [TCP Keep-Alive ACK] 1847 >

imap [ACK] Seq=165 31 1.608089 host client IMAP [TCP Keep-Alive] Response: \\000 32 1.608105 client host TCP [TCP Keep-Alive ACK] 1847 >

imap [ACK] 33 1.809304 host client IMAP [TCP Keep-Alive] Response: \\000 34 1.809342 client host TCP [TCP Keep-Alive ACK] 1847 >

imap [ACK] 35 2.010529 host client IMAP [TCP Keep-Alive] Response: \\000 36 2.010554 client host TCP [TCP Keep-Alive ACK] 1847 >

imap [ACK] 37 2.211663 host client IMAP [TCP Keep-Alive] Response: \\000 38 2.211695 client host TCP [TCP Keep-Alive ACK] 1847 >

imap [ACK] 39 2.412831 host client IMAP [TCP Keep-Alive] Response: \\000 40 2.412868 client host TCP [TCP Keep-Alive ACK] 1847 >

imap [ACK]

Here is how it is now-

94 907.489311 host client IMAP [TCP Keep-Alive] Response: \\000 95 907.489341 client host TCP [TCP Keep-Alive ACK] 1417

imap [ACK]

96 907.691938 client host IMAP Request: DONE 97 907.742140 host client IMAP Response: 00000008 OK IDLE terminated 98 907.742302 client host IMAP Request: 00000009 IDLE 99 907.792558 host client IMAP Response: + idling 100 907.933511 client host TCP 1417 > imap [ACK] Seq=363 Ack=2377 101 1807.881500 host client IMAP [TCP Keep-Alive] Response: \\000 102 1807.881539 client host TCP [TCP Keep-Alive ACK] 1417 > imap [ACK 103 1808.241628 client host IMAP Request: DONE 104 1808.291743 host client IMAP Response: 00000009 OK IDLE terminated 105 1808.291882 client host IMAP Request: 0000000a IDLE 106 1808.342147 host client IMAP Response: + idling 107 1808.506261 client host TCP 1417 > imap [ACK] Seq=384 Ack=2416

My questions are-

Is the best way to fix this issue?

Are there any problems doing this?

Thanks for your help!