12-30-2014 07:08 PM - edited 03-12-2019 10:13 AM
Q&A Session for Technical Service Virtual Boot camp - Session 6
A: Session-Expires header talks about the maximum time an INVITE would stay valid, before it has been addressed, where as the Min-SE value is session dependent.
A: I believe you want to mention 1800 rather. The invite message has a expires header field.
A: Both a Wireshark or a translator x or a regular notepad ++ for a call manager trace file can be used to review.
A: So does that c=0.0.0.0 and a=inactive at the same time.
A: a=sendonly indicates that the call is on hold.
A: 6 keep alives will be send.
A: CUBE is always an IP to IP arrangement, so has to be an ITSP.
A: I doubt it is configurable and made to be triggered. c=0.0.0.0 is no longer recommended per RFC2543, you would see a confirmed reply on the CSC page, would update.
A: c line is the ip address or the hostname that the originator expects the media to arrive at‑ the IP= 0.0.0.0 indicates.
A: I don't think there is any fundamental difference apart from the fact the transport type changes, so reliability of message delivery is different.
A: Yes it would have.
A: This would be revisited in detail on the CUCM.
A: This is a method per rfc to share that the call is on hold.
A: Email address and phone numbers can be shared in e and p lines, we don’t necessary see these in cisco devices to have this in their sdp.
A: SIP stack contains a transport layer and needs to have a valid TCP session for addressing incoming INVITES.
A: A xcoder necessarily is not needed to mitigate a DTMF mismatch a xcoder when taking a role of an MTP can mitigate DTMF mismatch. CUBE local resources can be used for the mismatch, there are lot more specific scenarios based on which we would have. If you can specify exactly what dtmf relay mechanisms exist on the cube inbound and outbound dial-p then would be able to be better comment.
A: NO , what depends is what kind of a DTMF mechanism are we doing.‑ A SIP KPML is a subscribe while a SIP notify is a NOTIFY method.
A: sure we can .. would raise that as a request and let you know.
A: This needs a recreate.. good find. I don’t think that has been integrated yet, would update.
A: That is used for a relative range. For servers in different timezone, whichever has been the last 5 minutes from each server logs would be pulled for those.
A: http://translatorx.cisco.com/
A: Not quite, for issues which don't have to deal with call flows, and need device layer review or other components notepad ++ can be preferred.
A: It is not part of the package but is a freeware.
A: There is a decoder which is codec in c language which can be used. Native support of g729 codec does not exist yet.
A: Video sampling is a still a enhancement for the tool.
A: Video packets cannot be sampled.
A: https://supportforums.cisco.com/docs/DOC-38598.
A: https://supportforums.cisco.com/document/12018656/technical-services-virtual-boot-camp-series
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