[cisco-voip] No Ringing on Some outbound Calls - at&t ipFlex

[Matthew Loraditch]

Working on it, can't recreate on my IPC and the customer is across the country so gotta get somebody to sit down for 10 minutes and do calls with me!


Matthew G. Loraditch – CCNP-Voice, CCNA-R&S, CCDA
1965 Greenspring Drive
Timonium, MD 21093

direct voice. 443.541.1518
fax.  410.252.9284

Twitter  |  Facebook  | Website  |  Email Support
Support Phone. 410.252.8830


-----Original Message-----
From: Peter Slow [mailto:peter.slow at gmail.com] 
Sent: Tuesday, June 03, 2014 4:09 PM
To: Matthew Loraditch
Cc: Brian Meade; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] No Ringing on Some outbound Calls - at&t ipFlex

so can we see some SIP debugs? =)

On Tue, Jun 3, 2014 at 4:04 PM, Matthew Loraditch <MLoraditch at heliontechnologies.com> wrote:
> Thanks everyone. I am somewhat familiar with all of this, but the 
> refresher in the finer details helps.
>
>
>
>
>
> Matthew G. Loraditch – CCNP-Voice, CCNA-R&S, CCDA
>
> 1965 Greenspring Drive
> Timonium, MD 21093
>
> direct voice. 443.541.1518
> fax.  410.252.9284
>
> Twitter  |  Facebook  | Website  |  Email Support
>
> Support Phone. 410.252.8830
>
>
>
>
>
> From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf 
> Of Brian Meade
> Sent: Tuesday, June 03, 2014 3:51 PM
> To: Peter Slow
> Cc: cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] No Ringing on Some outbound Calls - at&t 
> ipFlex
>
>
>
> Correct, it's the PortReq SCCP message and PortRes return message that 
> is used for this.
>
>
>
> On Tue, Jun 3, 2014 at 3:22 PM, Peter Slow <peter.slow at gmail.com> wrote:
>
> most skinny endpoints running newish software support early offer 
> using the sccp getport message, fyi.
>
>
> On Tue, Jun 3, 2014 at 2:10 PM, Amit Kumar <amit3.kum at gmail.com> wrote:
>> Here are my two cents.
>>
>> Skinny endpoint mostly do an delayed offer, unless we force on sip 
>> trunk to do an an early offer ( mtp if needed ). as everyone said, 
>> ringback behavior changes from call manager, as per what we get from 
>> called party.
>>
>> 180 ringing without SDP - > Ringback needs to be generated locally.
>> 180 / 183 with SDP - > Called party is going to play ringback for us. 
>> We just need to establish media by that time ( Similar to what we see 
>> in ISDN, when we get alerting with an PI of 3 or 8 ). In case of 
>> delayed offer, PRACK is really an solution to look forward to have 
>> media established beforehand.
>>
>>
>>
>>
>> On Tue, Jun 3, 2014 at 10:50 PM, Brian Meade <bmeade90 at vt.edu> wrote:
>>>
>>> Definitely at least need the "debug ccsip messages" for one of the calls.
>>> We'll need to see if AT&T is sending a 180 Ringing or if they're 
>>> sending a
>>> 183 Session Progress w/ SDP to play the ringback inband.  If they're 
>>> sending a 183 Session Progress, make sure the SIP Profile on the SIP 
>>> Trunk has the Rel1XX Options set to Send Prack if 18X contains SDP.
>>>
>>>
>>> On Tue, Jun 3, 2014 at 12:43 PM, Matthew Loraditch 
>>> <MLoraditch at heliontechnologies.com> wrote:
>>>>
>>>> We are having a regular but not always issue with a client, where 
>>>> they are not hearing the ringing when dialing outbound on calls. 
>>>> These are SCCP 6945s to UCM 9.1.2 SIP Trunked to CUBE and then 
>>>> handoff to at&t’s ipFlex service.
>>>>
>>>> If anyone has some suggestions to look at before I spend time with 
>>>> TAC it would be appreciated!
>>>>
>>>> Thanks!
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Matthew G. Loraditch – CCNP-Voice, CCNA-R&S, CCDA
>>>>
>>>> 1965 Greenspring Drive
>>>> Timonium, MD 21093
>>>>
>>>> direct voice. 443.541.1518
>>>> fax.  410.252.9284
>>>>
>>>> Twitter  |  Facebook  | Website  |  Email Support
>>>>
>>>> Support Phone. 410.252.8830
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> cisco-voip mailing list
>>>> cisco-voip at puck.nether.net
>>>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>>>
>>>
>>>
>>> _______________________________________________
>>> cisco-voip mailing list
>>> cisco-voip at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>>
>>
>>
>> _______________________________________________
>> cisco-voip mailing list
>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>
>
>