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IP Phones not getting line numbers

corpuzp
Level 1
Level 1

Having trouble configuring my IP phones as they are able to get their IPs from DHCP which is located in the layer 3 switch but aren't able to get their line numbers from the VoIP Cloud Server. Tried pinging the IPs from the layer 3 switch and the VoIP server but has failed to do so. This is all through packet tracer and I'll provide a screenshot of the network configuration. Please let me know if any other information is needed for context. 

Branch1 Core Switch: 

ip dhcp excluded-address 10.10.0.1 10.10.0.10

ip dhcp excluded-address 10.20.0.1 10.20.0.10

!

ip dhcp pool Data

network 10.20.0.0 255.255.255.0

default-router 10.20.0.1

option 150 ip 1.1.1.1

ip dhcp pool Voice

network 10.10.0.0 255.255.255.0

default-router 10.10.0.1

option 150 ip 1.1.1.1

!

router ospf 1

log-adjacency-changes

network 1.0.0.0 0.255.255.255 area 0

network 10.0.0.0 0.255.255.255 area 0

!

VoIP Cloud Server

interface FastEthernet0/0

ip address 1.1.1.1 255.0.0.0

duplex auto

speed auto

!

interface FastEthernet0/0.10

encapsulation dot1Q 10

no ip address

!

interface FastEthernet0/0.20

encapsulation dot1Q 20

no ip address

interface FastEthernet0/0

ip address 1.1.1.1 255.0.0.0

duplex auto

speed auto

!

interface FastEthernet0/0.10

encapsulation dot1Q 10

no ip address

!

interface FastEthernet0/0.20

encapsulation dot1Q 20

no ip address

telephony-service

max-ephones 4

max-dn 4

ip source-address 1.1.1.1 port 2000

auto assign 1 to 4

!

1 Reply 1

pieterh
VIP
VIP

I do not see any port configured as access port ?
all ports in your output are "encapsulation dot1Q...." is there any other switch involved ?

NB! normally a port for an IP-phone is an access port , not a vlan trunk!
with either voice vlan configured as access vlan
or a data vlan as access vlan + a voice vlan configured
the phones are Cisco IP phones ? -> they will use CDP to retrieve the voice vlan configured on the switch

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