Cisco Unified IP Phone Firmware Distribution over satellite link

[sjpope40]

I have a remote site that has several IP phones behind a satellite WAN link.  The RTT is around 700ms so the TFTP file transfers from the CUCM to the phones can take several hours to complete.  

Are there any options to speed up the file transfer speed from CUCM to the phones?  I would prefer to not deploy a load server at the remote location.  

[Jaime Valencia]

If your devices can use PFS you can try that option, although it would still need to transfer all the files from the TFTP server to the phones for it to work.

If your constrains are BW and RTT, your best option really is a local load server.