transfer out coming calling,

[falkes4]

Dears all,

I have a small problem with transfer out coming calling,
When a call comes from outside to attendant internal, calling is coming. But when I want to transfer this call to another extension, I lose the outside call, and but the transfer to extension coming well.

All phones are Analog type
my Pbx is OXO Large

thank for Help

[falkes4]

any adv

[eksin75]

Please check flash hook setting on analog phone, DIP switch have setting for 100/300/600 ms. If phone setting is 600 but OXO flash hook timing is 100 then the external call will be disconnect.