Retry Interval for BLF subscribe for blf broadsoft implemetation.

Hi,

We are facing a problem where polycom phones keep sending the blf SUBSCRIBES every 1 or 2s when it does not get a 200OK immediately. Becuase of delay in our backend servcies we are sending a delayed 200Ok .. but by this time phone keeps sending the SUBSCRIBES which is causing more problems. Also the phone is not honoring "491 Request Pending" signal.

is there is setting a polycome phones like "Retry Internal" like cisco phones ?

Any help is much appreciated.

Thanks,

Venkat.