Call forwarding unconditional, Call forwarding if busy, Call forwarding if no answer – 2N Analogue UMTS gateway 2N SmartGate UMTS - Manual, 1699 v1.1.0 User Manual
Page 59: Voice function 4.1

Voice function
4.1
59
Call forwarding unconditional
If activated, incoming calls will be always forwarded to the configured telephone
number.
Activation for all call types:
<Telephone number>
Activation for selected call type:
<Telephone number>
<Call type>
Deactivation:
Status check:
Call forwarding if busy
If activated, incoming calls will be forwarded to the configured telephone number
if there is call in progress on SmartGate UMTS.
Activation for all call types:
<Telephone number>
Activation for selected call type:
<Telephone number>
<Call type>
Deactivation:
Status check:
Call forwarding if no answer
If activated, incoming calls will be forwarded to the configured telephone number
if incoming call isn’t answered during specified timeout. Default timeout is 20
seconds.
Activation for all call types:
<Telephone number>
Activation for selected call type:
<Telephone number>
<Call type>