I tried it but it doesn't help. Tx for the suggestion.
Main Topics
Browse All Topics
Loading Advertisement...
Question
sip show channels - seems to contain stale info...
When I type show channels there are 0 channels in use yet sip show channels returns the records below. Kindly explain. How do I clear them without a restart of Asterisk? Are they a problem?
This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.
Subscribe now for full access to Experts Exchange and get
Instant Access to this Solution
- Plus...
- 30 Day FREE access, no risk, no obligation
- Collaborate with the world's top tech experts
- Unlimited access to our exclusive solution database
- Never be left without tech help again
Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.
- "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
- "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
- "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.
See what Experts Exchange can do for you.
Got a question?
We've got the answer.
Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.
Need individual assistance?
Our experts are ready to help.
If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.
Want to learn from the best?
Read articles from industry experts.
Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.
Working on a long term project?
Store your work and research.
Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.
Access the answers to your technology questions today.
30-day free trial. Register in 60 seconds.
What Makes Experts Exchange Unique?
Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.
Trusted by the world's most respected brands.
Faithfully serving IT professionals since 1996.
Try it out and discover for yourself.
30-day free trial. Register in 60 seconds.
Free Tech Articles
-
WARNING: 5 Reasons why you should NEVER fix a computer for free.
It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
-
SCCM OSD Basic troubleshooting
SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
-
Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
-
Create a Win7 Gadget
This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
-
Outlook continually prompting for username and password
There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
-
Backup Exchange 2010 Information Store using Windows Backup
There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...
Cloud Class Webinars
- Avoiding Bugs in Microsoft Access
Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
- Top 10 Best New Features in Visio 2010
Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
- IT Consultant Business Secrets Revealed
Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
- Disaster Recovery and Business Continuity
Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
- Organize Your Visio Diagrams with Containers and Lists
Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
- How to Us Objects, Properties, Events and Methods in Microsoft Access
Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...
Join the Community
Give a Little. Get a Lot.
Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.
Answers
Try SIP SHOW PEERS
What you are looking at is not stale... it's the channel id for each registration.
http://www.voip-info.org/w
That is a good question. I just tried "sip show inuse" on my local asterisk box and, purely from experimentation, got these results:
1) SIP phone 4003 is calling 4004 (during ringing)
* Peer name In use Limit
4004 1/1 4
4003 1/0 4
2) After the call is answered (4003 is talking to 4004)
* Peer name In use Limit
4004 1/0 4
4003 1/0 4
I also tried googling for more information about "sip show inuse", but couldn't find anything meaningful.
By the way, I would hazard a guess that the problems you are seeing on your sip calls are due to incorrect routing of packets or firewall/NAT problems. It is just a guess, but your list for "sip show channels" has too many INVITE and BYE's shown in the "Last message" column. On my Asterisk servers most of the "Last message" entries are ACK's or OK's. If your routing or firewall policies are wrong, it is possible for one end point to send a SIP message, but the other end point to then not be able to respond to it - at least it tries to send a response, but the response is not received. Usually, when this is happening you will see the first end point re-send the request several more times. For INVITE's and BYE's there is always an ACK or an OK at the end of the dialogue so that is what you are most likely to see in the "Last message" column.
Thanks this is most informative.
The iptables looks like this - does it look inorder?
-A RH-Firewall-1-INPUT -d 41.2.9.6 -m state --state NEW -m tcp -p tcp --dport 5060:5082 -j ACCEPT
-A RH-Firewall-1-INPUT -d 41.2.9.6 -m state --state NEW -m udp -p udp --dport 5060:5082 -j ACCEPT
#-A RH-Firewall-1-INPUT -d 41.2.9.6 -m state --state NEW -m tcp -p tcp --dport 8000:20000 -j ACCEPT
-A RH-Firewall-1-INPUT -d 41.2.9.6 -m state --state NEW -m udp -p udp --dport 8000:20000 -j ACCEPT
-A RH-Firewall-1-INPUT -d 41.2.9.6 -m state --state NEW -m udp -p udp --dport 4569 -j ACCEPT
The rules look ok as far as I can tell. It may not just be firewall rules. It may depend on the IP addresses embedded within the SIP packets (The Contact header and Via's especially) and also on your network routing.
I think you would have to capture some SIP packets to confirm if the problem is like I suggested. Especially look for the tell-tale resending of the same request. I use the built-in packet logging mechanism in Asterisk. CLI commands: "sip debug" (v1.2) or "sip set debug" (v1.4). Type "help sip" for details of all the debug commands.
A diagram would help.
Is NAT involved? If it is, then check the advice on my web page here:
http://www.smartvox.co.uk/
ICMP ping is very unlikely to be relevant to SIP.
I like you web site tx for the link.
Nat's not involved.
VSP<-->Asterisk Server<-->Clients Asterisk Server
All 3 are not behind a NAT.
Any ideas please?
By the way when I try and send to an alternate VSP I get the error
frame.c:203 __ast_smoother_feed: Dropping extra frame of G.729 since we already have a VAD frame at the end
I have confirmed that "Silence supresion" is off on their side. They say other * servers send to them fine. Their devices are Quintums.
Perhaps this can give a clue.
I don't get this error to any other VSP I send traffic too.
Can you capture a SIP packet and post it back here as an attached snippet. I just need to see one example of a packet that is getting sent multiple times - probably an INVITE or a BYE. In particular, I want to see what is in these three headers (they contain IP addresses/port used for returning SIP messages or responses):
Via
Contact
Record-Route
http://www.smartvox.co.uk/
3 Ways to Join
Business Accounts
- Perfect for organizations
- Multiple users
- Save over 36%
- Create a Business Account
Answer for Membership
- Earn free access
- Showcase your knowledge
- No credit card required
- Sign Up to Answer
Loading Advertisement...
by: feptiasPosted on 2008-12-08 at 01:28:41ID: 23119347
This is a guess, but I wonder if these CLI commands might be relevant:
sip history
sip history off
I have never used the commands and the wiki seems to have no info about them, but I would guess that they somehow cause Asterisk to retain information about old SIP calls. Perhaps you turned on "sip history" without realising what it would do. This would make sense because some of the calls in your list show that BYE was the last message, so it looks like Asterisk is aware that they had finished.