04-07-2013 06:10 AM - edited 03-16-2019 04:39 PM
Hi all,
I have configured new 10 IP phone sets to new Company, and connected to New cisco switch ( SG300-28P ) 28 POE port.
When i call any one the conversation is not clear and noisy, but most time after I close and call back again the conversation become clearly.
I don't know why this happening till now more than 3 days with the same issue to all ip phone sets.
Note: this is the first time I configure this type of switch, I have only configured the Voice Vlan , is that problem because of qulity of service not configured?
kindly help.
Regards
04-07-2013 07:55 AM
Any one know how to configure Voice Vlan on SG300-28P switch? i think this will help me.
04-07-2013 08:06 AM
this will help on voice vlan cofniguration.
04-07-2013 08:30 AM
Thanks Chandan I will try it and inform you.
Thanks Amanso i will check all the details and inform you.
Regards
04-07-2013 07:56 AM
Hi Jack,
Can u provide detail what is the model of IP phones you are using ,is this problem occurring while calling internally from IP phone to IP phone or some phones are connected across WAN?
Are phones working on PoE or external adaptors are connected?
What do you mean by close by ?
I was seeing the datasheet of the Switch which says that QoS is supported by switch.
regds,
aman
04-10-2013 04:04 AM
Hi Chandan , I did same the configuration , but the problem not solved. some calls are clear but some are noisy like you are talking to Robot.
Hi Amanso the ip phone model : 79121 , for internal calling no problem , the problem only for outside calls.
yes phones are working on POE ,
As i said the first time I call someone number, most time the noisy is there it's look like robot, but when i disconnect the call and call back to same number the voice is clear !!
belwo is the show run output:
switche7a235#sho run
config-file-header
switche7a235
v1.2.7.76 / R750_NIK_1_2_584_002
CLI v1.0
file SSD indicator encrypted
@
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0
!
vlan database
vlan 250
exit
voice vlan id 250
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
hostname switche7a235
!
interface gigabitethernet1
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet2
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet3
switchport mode access
switchport access vlan 250
!
interface gigabitethernet4
switchport mode access
switchport access vlan 250
!
interface gigabitethernet5
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet6
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet7
switchport mode access
switchport access vlan 250
!
interface gigabitethernet8
switchport mode access
switchport access vlan 250
!
interface gigabitethernet9
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet10
switchport mode access
switchport access vlan 250
!
interface gigabitethernet11
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet12
switchport mode access
switchport access vlan 250
!
interface gigabitethernet13
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet14
switchport mode access
switchport access vlan 250
!
interface gigabitethernet15
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet16
switchport mode access
switchport access vlan 250
!
interface gigabitethernet17
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet18
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet19
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet20
switchport mode access
switchport access vlan 250
!
interface gigabitethernet21
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet22
storm-control broadcast enable
storm-control broadcast level 10
storm-control include-multicast
port security max 10
port security mode max-addresses
port security discard trap 60
spanning-tree portfast
switchport mode access
switchport access vlan 250
macro description ip_phone_desktop
!next command is internal.
macro auto smartport dynamic_type unknown
!
interface gigabitethernet23
switchport mode access
switchport access vlan 250
!
interface gigabitethernet24
switchport mode access
switchport access vlan 250
!
interface gigabitethernet25
switchport mode access
switchport access vlan 250
!
interface gigabitethernet26
switchport mode access
switchport access vlan 250
!
interface gigabitethernet27
switchport mode access
switchport access vlan 250
!
interface gigabitethernet28
spanning-tree link-type point-to-point
switchport trunk allowed vlan add 250
macro description switch
!next command is internal.
macro auto smartport dynamic_type switch
!
04-10-2013 09:11 AM
Hi Jack,
To isolate the problem, do you have IP phone of different model or any other cisco switch with POE.
Secondly, are u facing this problem with all 7912 IP phones.
regds,
aman
04-11-2013 04:17 AM
Hi Amanso,
I tested two IP phone different type "7940" found is working with no issue.
The only problem is with all 7912 type, how come ? it is all new !!!
Is that means it is type problem ?
Regards
04-11-2013 04:29 AM
check for a firmware upgrade for 7912.
04-11-2013 05:17 AM
Hi Jack,
Few questions:
a. What is Call Manager version ?
b. What is the firmware version for 7912 and signalling protocol?
c. What is gateway model along with IOS version?
b. Is 7940 working on PoE?
regds,
aman
04-11-2013 05:59 AM
Hi Jack,
Can u try configuring command switchport voice vlan 250 under the port where 7912 is connected?
I was just checking for bugs and could be the cause for your problem.
regds,
aman
04-11-2013 09:29 AM
Hi Amanso,
I have changed all the IP phones to 7911, but the problem remains?!!!!!
no there is no such like this command in this switch type, "switchport voice vlan 250".
tomorrow i will change the switch, and see what will happen.
Regards
04-14-2013 09:15 PM
Hi Jack,
Did u get a chance to change the switch?
Any results.
regds,
aman
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