Alcatel OmniPCX blocks DECT Extension

 

Matter:

- one THS (Test Handset) can not be called

- Alcatel sends busy status if it is called

Summary
Description:

After a while of operation of a THS HS Alcatel sends busy if a the HS gets called.

Even an outgoing call from the THS is not possible.

The Alcatel Extension where the THS is subscribed seems to be blocked.

After unsubscribing and re-subscribing the extension works normal again.

A test should clarify the reason and the unit which causes this behavior.

 

Test set up:

-        1 CHS (CHS_1) subscribed at PABX as GAP   (GAP+)

-        1 CHS (CHS_2) subscribed at PABX as GAP+ (GAP)

-        1 THS (THS_1) subscribed at PABX as GAP+

-        1 THS (THS_2) subscribed at PABX as GAP+

-        1 THS (THS_3) subscribed at PBAX as GAP

-        1 THS (THS_4) subscribed at PBAX as GAP

(CHS: Comparative Handset, THS: Test Handset)

Test procedure:

-        take 2 HS (GAP/GAP or GAP/GAP+ or GAP+/ GAP+)

-        make a call between them

-        remove the battery of one HS (no power) during the call

-        insert the battery again

-        do new calls between the 2 HS

Result:

-        blocking an extension can be reproduced be removing the battery of the GAP HS during an ongoing call

-        happens to extensions with GAP subscribed HS only

-        if GAP+ battery is removed, GAP+ HS rings after battery insert, after hook off, pending call can be continued, no blocking GAP HS

-        CHS HS and THS HS showthe samebehavior => Alcatel OmniPCX issue

-        effected blocked CHS show the same PABX- Message (“insufficient resources”) in display as DnA found in the DECT air trace during analyzing the issue at

-        self-unblocking ca. after 1min if GAP- GAP+ call was interrupted

-        no self-unblocking if GAP - GAP call was interrupted, until now, just rebooting PBAX is a known solution to free extension for GAP HSs, GAP+ is no problem

Solution: subscribe all HS as GAP+ at Alcatel OmniPCX
Test Proceeding Result
THS call GAP > GAP+ call THS_3 > THS_1, remove battery THS_3, insert battery THS_3, call THS_3 > THS_1, call THS_1 > THS_3

6/6

THS_3 > THS_1: f(fault)

THS_1 > THS_3: busy

THS call GAP+ > GAP call THS_3 > THS_1, remove battery THS_3, insert battery THS_3, call THS_3 > THS_1, call THS_1 > THS_3

1/1

THS_3 > THS_1: f

THS_1 > THS_3: busy

THS call GAP+ > GAP+ call THS_2 > THS_1, remove battery THS_2, insert battery THS_2, call THS_2 > THS_1, call THS_1 > THS_2

2/2

GAP+ HS rings after battery insert, after hook off pending call can be continued, no blocking GAP HS

THS call GAP > GAP call THS_3 > THS_4, remove battery THS_3, insert battery THS_3, call THS_4 > THS_3, call THS_3 > THS_4

2/2

THS_3 > THS_4: f

THS_4 > THS_3: f

both GAP are blocked

no self-unblocking

CHS call GAP > GAP+ call CHS_1 > CHS_2, remove battery CHS_1, insert battery CHS_1, call CHS_1 > CHS_2, call CHS_2> CHS_1

4/4

CHS_1 > CHS_2: f(fault)

CHS_2 > CHS_1: busy

CHS call GAP+ > GAP call CHS_2 > CHS_1, remove battery CHS_1, insert Battery CHS_1, call CHS_1 > CHS_2, call CHS_2> CHS_1

1/1

CHS_1 > CHS_2: f(fault)

CHS_2 > CHS_1: busy

CHS call GAP+ > GAP+ call CHS_1 > CHS_2, remove battery CHS_1, insert battery CHS_1, call CHS_1 > CHS_2, call CHS_2> CHS_1

2/2

GAP+ HS rings after battery insert, after hook off pending call can be continued, no blocking GAP HS

CHS call GAP > GAP call CHS_1 > CHS_2, remove battery CHS_1, insert battery CHS_1, call CHS_1 > CHS_2, call CHS_2> CHS_1

1/1

CHS_1 > CHS_2: f

CHS_2 > CHS_1: f

both GAP are blocked

no self-unblocking

Test Proceeding Result
THS/CHS call GAP > GAP+ call THS_3 > CHS_2, remove battery THS_3, insert battery THS_3, call THS_3 > CHS_2, call CHS_2 > THS_3

2/2

THS_3 > CHS_2: f(fault)

CHS_2 > THS_3: busy

THS/CHS call GAP+ > GAP call CHS_2 > THS_3, remove battery THS_3, insert battery THS_3, call THS_3 > CHS_2, call CHS_2 > THS_3

2/2

THS_3 > CHS_2: f(fault)

CHS_2 > THS_3: busy

THS/CHS call GAP+ > GAP+ call THS_3 > CHS_2, remove battery THS_3, insert battery THS_3, call THS_3 > CHS_2, call CHS_2 > THS_3

1/1

GAP+ HS rings after battery insert, after hook off pending call can be continued, no blocking GAP HS

THS/CHS call GAP > GAP call THS_3 > CHS_1, remove battery THS_3, insert battery THS_3, call CHS_1 > THS_3, call THS_3 > CHS_1

1/1

CHS_1 > THS_3: f

THS_3 > CHS_1: f

both GAP are blocked

no self-unblocking

cell change

call THS_3 > THS_1, remove battery THS_3, insert battery THS_3, call THS_3 > THS_1, call THS_1 > THS_3,

cell change,

THS_3, call THS_3 > THS_1, call THS_1 > THS_3

3/3

THS_3 > THS_1: f(fault)

THS_1 > THS_3: busy

THS call GAP > GAP+

battery remove GAP+ HS

call THS_3 > THS_1, remove battery THS_1, insert battery THS_1

1/1

GAP+ HS rings after battery insert, after hook off pending call can be continued, no blocking GAP HS