How to get second dial tone

Answered Question
Jul 14th, 2009
User Badges:

Hi all,


I have a problem. When customer dial "8", it will access the voice gateway. It also delete replace "8" by "20" sent to voice gateway. The problem is customer can't get dial tone when dialing '8'.


------------------

dial-peer voice 1 pots

trunkgroup PABX

description To HK Local Extension

destination-pattern 6..

forward-digits all


dial-peer voice 2 pots

trunkgroup PABX

description To HK CO Line

destination-pattern 9T

forward-digits all


!

dial-peer voice 101 voip

description To SZ Local Extension

destination-pattern 20[1-6]...

session target ipv4:10.1.1.1

dtmf-relay h245-alphanumeric

ip qos dscp cs5 media

no vad

!

dial-peer voice 102 voip

description To SZ CO Line

destination-pattern 2069T

session target ipv4:10.1.1.1

dtmf-relay h245-alphanumeric

ip qos dscp cs5 media

no vad

!

dial-peer voice 103 voip

description To SZ Reception

destination-pattern 200

session target ipv4:10.1.1.1

dtmf-relay h245-alphanumeric

ip qos dscp cs5 media

no vad

!

------------------


Regards

Leung Che Man

Correct Answer by CHRIS CHARLEBOIS about 7 years 11 months ago

The secondary dialtone is usually provided by the serving switch, which is this case would be the PABX. How is the PABX routing the call? Usually, the PABX will collect all the digits before sending the call out a trunk. If that's the case, the PABX is still holding the call when the caller should be hearing the secondary dialtone.

Correct Answer by gogasca about 7 years 11 months ago

hi sir,

unless call comes from dial-peer pots without direct-inward dial and u dial 8 from an external system yes, otherwise we need CME, to provide it

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Overall Rating: 4 (2 ratings)
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gogasca Tue, 07/14/2009 - 00:06
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Dial tone will be provided with CUCM or CME or UC500

or by going offhook if u dont have 3 above GW cannot provide dialtone by entering a digit

cm6043 Tue, 07/14/2009 - 00:12
User Badges:

Hi qoqasca,


Is there any alternative to get the second dial tone when pressing '8'


Thanks for your help

Leung Che Man

Correct Answer
gogasca Tue, 07/14/2009 - 00:14
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hi sir,

unless call comes from dial-peer pots without direct-inward dial and u dial 8 from an external system yes, otherwise we need CME, to provide it

cm6043 Tue, 07/14/2009 - 00:24
User Badges:

Hi qoqasca,



The following is my VOIP connection. is it possible to get second dial tone in the customer ?


customer --- pabx ---- router HK---- ip --- router SZ --- pabx --- customer


Thanks

Leung Che Man

Correct Answer
CHRIS CHARLEBOIS Tue, 07/14/2009 - 08:24
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  • Silver, 250 points or more

The secondary dialtone is usually provided by the serving switch, which is this case would be the PABX. How is the PABX routing the call? Usually, the PABX will collect all the digits before sending the call out a trunk. If that's the case, the PABX is still holding the call when the caller should be hearing the secondary dialtone.

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