One sided Calls

[ToxicMyst]

Hi,

I have a real conundrum here, hope someone can help.

We have a 406 V4.2(20) Firmware
Mixture of DS5410 and 1616 IP handsets whioch are all latest firmware 1.0483.

The IP handsets connect to HP Procurve 3500YL switches which have vlans configured.

The IP office has both network ports enabled. The Phones sit in Vlan 20 and the data sits in Vlan 1.

PCs connect to the phones.

I get instances where a number of phones are affected at the same time and this means that they cannot hear the called or calling party , depends if its inbound or outbound. This may last for anything from 5 - 30 seconds but eventually the call will come back.

HP said that this was a POE issue as we were getting Denied power to some ports. So I bought a new switch on their say so (ha) and it still happens.

We have followed a number of white papers and configured the switches according to the suggestions made by avaya and HP and everyone says QOS is setup correctly.

I know this is a brief description but anyone with any suggestions before I jack it all in and go back to all DS handsets. I can post configs from the procurves if required.

Thanks

 

[tlpeter]

Can you try working without the pc's connected to the phones and see if it still occurs ?

But no sound looks like a routing issue and not a POE issue !
If it is a POE issue then the phone need to register again because the just go down at all




ACS - Implement IP Office
ACA - Implement IP Telephony -- ACA - Design IP Telephony
ACA - Voice Services Management
______________
Women and cats can do as they please and men and dogs should relax and get used to the idea!

 

[amriddle01]

Post a monitor trace (with H323 options enabled)of a call experiancing the issue, it may help

ACS - IP Office Implement

"What the Crocodile Hat....was that?

 

[ToxicMyst]

I have just been looking at the DHCP scope for My Phones and noticed that the Subnet mask was wrong. 255.255.248.0 instead of 255.255.254.0. Could this well be the issue!!???

 

[amriddle01]

Could be, would normally either work or not rather than in and out during a call though

ACS - IP Office Implement

"What the Crocodile Hat....was that?

 

[ToxicMyst]

Other than having Vlans it's a flat network!

 

[Bas1234]

Try turning off QOS, also 255.255.254.0 must be 255.255.255.0 i think if you have a normal class C network.

___________________________________________
It works! Now if only I could remember what I did...

Dain Bramaged
___________________________________________

 

[ToxicMyst]

This appears to be an issue with routing and vlans. I have stuck phones on the data network and they are fine!! Will need to change the location of the post me thinks. Any procurve gurus out there who can help?

Thanks

 

[mattKnight]

I take it that you have the following
1) data network Ip range (say 192.168.1.0 / 24) on vlan 1
2) voice network IP range(say 192.168.20.0 /24) on vlan 20
3) One interface of IPO on voice network (say 192.168.20.254) and possibly the otehr on the data lan
4) VLANS configured on a packet tag basis i.e. devices can request their own vlan.
5) DHCP scope set up to provide an option 176 that forces avaya phones to use VLAN20 (or phones manually forced to VLAN20)
6) IPO interface on 192.168.20.254 is connected to procurve on a specific port that is an untagged member of vlan 20 (and not any member of VLAN1)
7) DHCP server (if not IPO) on a port configured as untagged member of Vlan 20 (and not any memeber of VLAN 1)



Take Care

Matt
I have always wished that my computer would be as easy to use as my telephone.
My wish has come true. I no longer know how to use my telephone.

 

[ToxicMyst]

Matt,

you have pretty much nailed the config exactly. I suspect you may have looked at this before or maybe actually seen a really old post of mine.

Anyway thats pretty much how its setup but if I put a phone in vlan 20 something odd happens, fairly randomly I will get a few phones who cannot hear the client at the other end, client can hear us and this can last for a while then all of a sudden call comes back and then it might repeat again at a random time interval, could be 10 seconds could be 10 minutes.

Bizzare.

 

[mattKnight]

I'd be looking closely at the switch config, especially at the inter vlan routing.

Another test would be to create a few ports hard on vlan 20 (and no interaction on vlan1) and a few phones into them. See if you have a problem with those.

Take Care

Matt
I have always wished that my computer would be as easy to use as my telephone.
My wish has come true. I no longer know how to use my telephone.