Voicemail questions

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Geektastic

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#171149 8-Apr-2015 09:08

Lately I have had some curious VM behaviours:

Calls have gone straight to VM without ringing the handset, despite being in 4 bar + coverage.
Voicemails have been left but no notification has been sent to the handset so the messages were listened to days later when a subsequent message had correctly notified the handset and I called to check messages.

Anyone have any ideas why and how to correct it?

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#1278806 8-Apr-2015 09:29

I have had these same behaviours for the last couple of months.

Seems odd.

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#1278808 8-Apr-2015 09:34

Have you collected example time / dates? Before anything could be looked into examples are always required for any issue

John

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#1278809 8-Apr-2015 09:35

Further to this 100% of Voice calls don't connect if handset is on due to reasons as long as my arm

Geektastic

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#1278816 8-Apr-2015 09:47

johnr: Further to this 100% of Voice calls don't connect if handset is on due to reasons as long as my arm

Here's an example from this morning.

A call from New York at 0900. First attempt straight to VM, no ringing.

Second attempt 5 minutes later from the same person did exactly the same.

We ended up conversing on Skype instead.

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#1278839 8-Apr-2015 10:33

Geektastic:
johnr: Further to this 100% of Voice calls don't connect if handset is on due to reasons as long as my arm

Here's an example from this morning.

A call from New York at 0900. First attempt straight to VM, no ringing.

Second attempt 5 minutes later from the same person did exactly the same.

We ended up conversing on Skype instead.

Need more than one example to work with, Please note down examples until you have at least 4 or 5

John

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#1278840 8-Apr-2015 10:34

johnr:
Geektastic:
johnr: Further to this 100% of Voice calls don't connect if handset is on due to reasons as long as my arm

Here's an example from this morning.

A call from New York at 0900. First attempt straight to VM, no ringing.

Second attempt 5 minutes later from the same person did exactly the same.

We ended up conversing on Skype instead.

Need more than one example to work with, Please note down examples until you have at least 4 or 5

John

Will do.

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Geektastic

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#1278841 8-Apr-2015 10:34

johnr: Further to this 100% of Voice calls don't connect if handset is on due to reasons as long as my arm

OOI for those of us not working in the industry, what are some of the most common?

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#1278843 8-Apr-2015 10:37

Geektastic:
johnr: Further to this 100% of Voice calls don't connect if handset is on due to reasons as long as my arm

OOI for those of us not working in the industry, what are some of the most common?

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cisconz

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#1278845 8-Apr-2015 10:41

Not sure of the commonality but things like

Not falling back to 3g or 2g from 4g (As no VoLTE as yet)
Handset not replying correctly when pinged by the tower
Handset replying busy
Handset not replying at all

Hmmmm

Geektastic

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#1278855 8-Apr-2015 10:48

cisconz: Not sure of the commonality but things like

Not falling back to 3g or 2g from 4g (As no VoLTE as yet)
Handset not replying correctly when pinged by the tower
Handset replying busy
Handset not replying at all

What is a VoLTE when it is at home on a wet Saturday night?!

cisconz

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#1278858 8-Apr-2015 10:52

Voice over LTE (4G)

Hmmmm

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#1278859 8-Apr-2015 10:53

Geektastic:
cisconz: Not sure of the commonality but things like

Not falling back to 3g or 2g from 4g (As no VoLTE as yet)
Handset not replying correctly when pinged by the tower
Handset replying busy
Handset not replying at all

What is a VoLTE when it is at home on a wet Saturday night?!

Not live to customers yet anyway

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#1278860 8-Apr-2015 10:58

cisconz: Voice over LTE (4G)

Ah. I looked that up as I didn't really know what that was either. Apparently it is

"VoLTE, an acronym for Voice over LTE, which is based on the IP Multimedia Subsystem (IMS) network, with specific profiles for control and media planes of voice service on LTE defined by GSMA in PRD IR.92.[1] This approach results in the voice service (control and media planes) being delivered as data flows within the LTE data bearer. This means that there is no dependency on (or ultimately, requirement for) the legacy circuit-switched voice network to be maintained. VoLTE has up to three times more voice and data capacity than 3G UMTS and up to six times more than 2G GSM. Furthermore, it frees up bandwidth because VoLTE’s packets headers are smaller than those of unoptimized VoIP/LTE."

So having looked it up, I am none the wiser but have decided it is 'newer' and therefore intended to be 'better'!

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#1278881 8-Apr-2015 11:21

Geektastic:
cisconz: Voice over LTE (4G)

Ah. I looked that up as I didn't really know what that was either. Apparently it is

"VoLTE, an acronym for Voice over LTE, which is based on the IP Multimedia Subsystem (IMS) network, with specific profiles for control and media planes of voice service on LTE defined by GSMA in PRD IR.92.[1] This approach results in the voice service (control and media planes) being delivered as data flows within the LTE data bearer. This means that there is no dependency on (or ultimately, requirement for) the legacy circuit-switched voice network to be maintained. VoLTE has up to three times more voice and data capacity than 3G UMTS and up to six times more than 2G GSM. Furthermore, it frees up bandwidth because VoLTE’s packets headers are smaller than those of unoptimized VoIP/LTE."

So having looked it up, I am none the wiser but have decided it is 'newer' and therefore intended to be 'better'!

Makes perfect sense to me. Well I think it does.

Crudely it means a service similar to VOIP (like Skype) where the voice or audio of the phone call and any signalling or control signals are sent over a data circuit (bearer) the same as for any data on that device. POTS and non LTE phone services have a voice circuit and if the device has data service a separate data circuit. In the case of landline broadband the data and the voice signal share the same wires but are effectively two separate services. You don't need one to have the other.

POTS and 3G services need a switch (telephone exchange) to route the calls from the caller to the recipient, with VoLTE the is no need for a dedicated switch. With VoLTE like VOIP the switching is done within the internet using IP addresses

With LTE voice and data are effectively combined, though I think currently LTE (4G) is only being used for data and 3G is still used for voice but in the future voice will be combined into the LTE (4G) signal.

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mattbush

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#1278971 8-Apr-2015 12:41

Isnt it like HD voice?

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