Section 5.2.2.2. Called subscribers (A) is not reachable, because deactivated via AMO with additional request for alternate routing

5.2.2.2. Called subscribers (A) is not reachable, because deactivated via AMO with additional request for alternate routing

What are the main goals ?
Calling a subscriber specific individual alternate routing destination number (mobile phone number)

Calling a general destination like voicemail or attendant.
What is possible ?
The alternate routing number can be designed to reach any other destination.

If the alternate routing destination number leads to a outgoing trunk access, only those route elements will be used for alternate routing, that are defined as with " no internal rerouting ".
What You want is: Calls to a deactivated subscriber_A should be alternate routed to voicemail.
For routing type = OOS, You must define either a subscriber individual alternate routing destination number for the subscriber_A or a source group related alternate routing destination number for that source group, subscriber_A is a member of.
```
CHANGE-SDAT: 
STNO=<no_subscr_A>,TYP=DATA1,STNOOOS=<no_voicemail>; or
 ADD-APRT:TYP=ALTERR,SRCGRP=<sg_subscr_A>,ALTRTYPE=OOS,         
ALTRTNR=<no_voicemail>
```
You must set a request for alternate routing, before deactivating the subscriber_A with AMO SDAT
```
CHANGE-SDAT:STANO=<no_subscr_A>,TYP=DATA1,AMOALTRT=J;
```
If You set this request and no kind of alternate routing destination number was administered before, the AMO SDAT will print out a hint-message.

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