Need some help 1

[Vmail]

I have a 406v2 with 35 IP phones running off a poe switch. The phones are 56xx series and all is well. I had today the phones all lock and no dial tone and 1 way talk path? Any ideas, the error log is clean, version 3.0.44 switch and latest firmware everywhere with an Extreme POE switch.

I reset the IPO and all is well????

 

[MrIPO]

Have you configured the network correctly, eg:VLAN Configurations/Subnets. This is a common complaint when the network (LAN Environment) has not been configured correctly.
The IPO phones are in constant communication with the IPO, when in an idle state and if a sequence of the "Keep Alive Packets are lost" the phones will lock up.
Power Cycling the IPO will force the phones to completely re-sync until the issue happens again. Other issues on the network not been correctly configured can cause the problems you discuss.

Can you please provide more information on your specific network configuration?

Also can you please confirm when you created the IP Extensions you Auto Created the accounts and left the VoIP settings on the extension as default and only changed settings under the users accounts for these extensions: eg : usernames – Buttons Etc


There are no issues that I am aware of (Firmware Related) with 3.0(44) and 2.2 IP Phone firmware. As I have many sites running this configuration in a pure IP environment as you have described.

Hope this helps

Umm anotherprivatebuild !!!

 

[Vmail]

MRIPO,

The network is not using Vlan's of any sort. There is only 5 servers connected to a dell 24 port switch -- that dell is connected to an extreme 48 port POE switch via gigabit connection. The phones are all connected by a single cat6 from the desktop, computers connected to the phones. IPO is connected via uplink port to the extreme. There is only 1 subnet for all pc's and phones.

We knew of this being an issue and wanted to set the phones on a vlan, but the cust thought that since the network isn't so robust we'd be fine.

The phones were set up and added with no changes under the extension tab, they are running the same. DHCP f/ the cust is providing the IP's.
The extension tab looks like this:

voicepkt size - 20
compression size - g.729
mac 000000000000
gain - default

 

[mytelecoms]

Your compression is great for a WAN, but G729(a) is not best for a LAN.

Instead, change your compression to G711 which will give you toll quality voice on your LAN, with little header overhead.

Make sure nothing is ticked on the VoIP options for each extn, such as Direct Media path or anything else really, as you won't need them on the LAN. I also try to avoid using auto create extn, and put static IPs on my phones - but that's just preference. Make sure you have the gatekeeper on, as this will provide diff-serv management, and helps streamline VoIP.

IP406 only has support for 30 VoIP channels don't forget. If you have everyone on the phone, you'll start to get funny things going on. If you use integrated voicemail or auto attendant, that also uses VoIP channels.

Version 3 also has a problem with VCM30 cards locking up. Contact your reseller or disti to get the prerelease of 3.0(5803) or wait a week for 3.0(59) which should be a new full release. The new firmware is supposed to fix the VCM issue.

I agree with MrIPO about making sure the LAN is setup correctly, and VLANs should be considered, but if you are using layer 3 switches, you should not get major problems without VLANs. Thing is, using the same subnet without VLANs means you'll get broadcasts on the switch which can lock up the phones. Are you prioritising your voice? You can connect PCs to the IP Phones for QoS or use your layer 3 switch to add class of service tags to voice and data.

Hope this helps.

 

[Vmail]

mytelecoms,

Thanks, running the pc's through the phones, does this provide Qos itself?

 

[sizbut]

Depends on the phones, not all the Avaya IP phones with PC ports give priority to the voice traffic from the phone. I also don't now if the 5620 is based on the 4620IP (which doesn't) or the 4620SW (which does).

 

[mytelecoms]

As far as I have been made aware with the 5610 and 5620, voice always gets priority over data on the built in two port switch.

Therefore, if your PC is downloading a large file from the LAN, and you make a VoIP call, the PC download will slow down as more bandwidth is reserved and allocated to the VoIP call.

This in itself ensures a level of QoS. Don't forget, QoS is still only and idea, not a technology. To get the best type of QoS, you should always use a good Layer 2/3/4 switch with class of sevice tagging and full VLAN support.

 

[mytelecoms]

Also just found that as well as the 5610 and 5620, the 5602SW also has a voice prioritizing switch which you can connect to your PC. This does not seem to be available in my region mind you, so check with your disti. Don't get stuck with the standard 5602.

Looks like Avaya have built on the 4600 phones now that all the 5600's with a two port switch have QoS feautures built in.

 

[mytelecoms]

Tell a lie, it is available. In the UK it is 5602D and 5602S with some distributors - 5602 being the 5602SW.

What phones do you have onsite?

 

[Vmail]

5610 and 1 5620..

 

[mytelecoms]

Both of those phones should provide priority for voice over data.

Let me know how you get on with everything.