[SIPForum-discussion] audio problem with G.723, B party can hear properly but A party cannot.

christopher stummer stummer77 at gmail.com
Thu Oct 24 15:19:52 UTC 2013


In the trace, packet number 4 shows the dscp value marked as zero.   Not
honoring QoS will cause chopping on congested links.  Source device
80.77.12.130.

Regards,
Chris
On Oct 24, 2013 11:06 AM, "Prakash Singh Chaudhary" <
prakashsinghchaudhary at gmail.com> wrote:

> Hi,
>
> Thanks for the reply, G.723 is supported in our SBC and by our egress
> carrier as well.
> The thing is I am getting voice issues only with this particular carrier
> who is using Alcatel Lucent and I have verified in different ethreal traces
> and ptime was 30ms for both ingress and egress legs.
>
> Regards.
> Prakash Singh Chaudhary
>
> On Tue, Oct 22, 2013 at 9:58 AM, Gmail <tkekana0 at gmail.com> wrote:
>
>> Hi
>>
>> Please check with your IC if they support this G723 codec and check the
>> ptime values.
>>
>> Regards,
>> Tshepo
>>
>> Sent from my iPhone
>>
>> On 21 Oct 2013, at 3:41 PM, Prakash Singh Chaudhary <
>> prakashsinghchaudhary at gmail.com> wrote:
>>
>> Hi,
>>
>> I am trying one interconnection where i tested calls with G.729 and G.711
>> and the calls were successful with good voice quality but if i use G.723
>> and make a call, then the B Party is able to hear A properly but the B
>> party gets choppy voice.
>>
>> If i try G.723 calls with other providers i am not facing this issue.
>>
>> In this trace i can see in the RTP summary that from A to B there is a
>> packet loss of 99% whereas B to A is 0%, but there are other cases when
>> this loss on both sides was 0% then also I faced voice quality problem for
>> audio coming from B to A.
>>
>> Can Someone throw a light here.
>>
>> Thanks & Regards
>>
>> Prakash Singh Chaudhary
>>
>>  <re.pcap>
>>
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>
>
> --
>
>
>
>
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