IP Phone 7821 - Problems to transfer calls

[fernandodonadio]

Hi, guys, 

I have 7821 IP Phones, registered on CUCM 9.1 using a Cisco 2921 as Voice Gateway and I'm facing problems to transfer calls.

When making a call transfer between internal extensions, it works perfectly.

For example, ext 8741 calls to 8742, then 8742 transfers to 8743.

But when a call comes from an external number (PSTN), I can´t transfer it.

Ex: +55 11 999164584 calls to 8741, then 8741 tries to transfer to 8742,  +55 11 999164584 hears 8742, but 8742 don´t.

Thanks in advance!!

[Rajan · Accepted solution]

Hi,

In the given scenario

+55 11 999164584 calls to 8741, then 8741 tries to transfer to 8742,  +55 11 999164584 hears 8742, but 8742 don´t.

What happens when +55 11 999164584 calls 8742 directly ?  are they able to hear each other.

Thanks 

Rajan

[fernandodonadio]

Hi, Rajan!!

They're able to hear each other.

The problem occurs just when the call is transfered.

Regards,

[Rajan]

Hi Fernando,

In that case, check the region settings configured for the two phones to see whether any difference and try to collect packet captures from the phone where the user is unable to hear to check. Also check whether the subnet the phones are in are allowed RTP communication to the IP address of the PSTN network both ways.

HTH

Rajan

[fernandodonadio]

Rajan,

Both phones are using the same region settings. 

Since the extension is allowed to receive calls coming from PSTN, it means the RTP communication is allowed, doesn't it?

[amralrazzaz]

hello rajan 

thanks for replying :)

my issue not about hearing its about dialing when i dial any number its not complete the dialing and its back by its self to main display (display name i mean normal )  some times happen with me and come back again by it self ?

maybe sim card or coverage network issue?

dunt know

[amralrazzaz]

User Access Verification

Password:
Password:
Router>en
Password:
Router#show run\
^
% Invalid input detected at '^' marker.

Router#show run
Building configuration...

Current configuration : 12299 bytes
!
! Last configuration change at 08:02:16 UTC Sun Jun 4 2017
!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
enable secret 5 $1$l9ha$dHLj/scp8Qm8C77UcUa/K0
enable password cisco1
!
no aaa new-model
!
!
!
!
!
!
!
!
!
!
!
ip dhcp relay information trust-all
!
ip dhcp pool voice
import all
network 192.168.2.0 255.255.255.0
default-router 192.168.2.207
option 150 ip 192.168.2.207
dns-server 8.8.8.8 8.8.4.4
!
!
!
ip dhcp global-options
dns-server 163.121.128.134 163.121.128.135
!
ip name-server 8.8.8.8
ip name-server 8.8.4.4
ip cef
no ipv6 cef
multilink bundle-name authenticated
!
!
!
!
!
!
!
trunk group Mobile
!
!
trunk group pstn
!
cts logging verbose
!
crypto pki trustpoint TP-self-signed-2728187941
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-2728187941
revocation-check none
rsakeypair TP-self-signed-2728187941
!
!
crypto pki certificate chain TP-self-signed-2728187941
certificate self-signed 01
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6DABFE4F F30D63A5 5C92E27A 7E3EE0
quit
voice-card 0
!
!
!
voice service voip
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h323
sip
registrar server
!
!
!
!
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create profile sync 0000212587445943
network-locale GB
!
voice register dn 1
!
voice register dn 5
number 100
name Inas AlMahalawi
label Inas AlMahalawi
mwi
!
voice register dn 6
number 101
name Meeting Room A
label Meeting Room A
mwi
!
voice register dn 7
number 102
name Ahmos Elquadi
label Ahmos Elquadi
mwi
!
voice register dn 8
number 103
name Sherif Ehab
label Sherif Ehab
mwi
!
voice register dn 9
number 104
name Khaled Elgarhy
label Khaled Elgarhy
mwi
!
voice register dn 10
number 105
name Sales 2
label Sales 2
mwi
!
voice register dn 11
number 107
name Amr Ismail
label Amr Ismail
mwi
!
voice register dn 12
number 108
name Mohamed Abdella
no-reg
label Mohamed Abdella
mwi
!
voice register dn 13
number 109
name Sales 1
label Sales 1
mwi
!
voice register dn 14
number 110
name Karim Habib
label Karim Habib
mwi
!
voice register dn 15
number 114
name Tamer Mazen
label Tamer Mazen
mwi
!
voice register dn 16
number 115
name Meeting Room B
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mwi
!
voice register dn 17
number 106
name Conference Room
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mwi
!
voice register dn 18
number 112
name Finance
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mwi
!
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number 113
name Marketing
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mwi
!
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busy-trigger-per-button 1
id mac 5067.AE21.4E6E
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cor incoming mobile-long default
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username romani password cisco
codec g711ulaw
!
voice register pool 6
pin 4100
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id mac 5067.AE21.4EA5
type 7821
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presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
voice register pool 7
busy-trigger-per-button 1
id mac 5067.AE21.9A74
type 7821
number 1 dn 7
cor incoming mobile-long default
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codec g711ulaw
!
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busy-trigger-per-button 1
id mac 5067.AE21.9A5A
type 7821
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cor incoming mobile-long default
presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
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busy-trigger-per-button 1
id mac 5067.AE21.99AC
type 7821
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presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
voice register pool 10
busy-trigger-per-button 1
id mac 5067.AE21.9A52
type 7821
number 1 dn 10
cor incoming mobile-long default
presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
voice register pool 11
busy-trigger-per-button 1
id mac 5067.AE21.9A1D
type 7821
number 1 dn 11
cor incoming mobile-long default
presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
voice register pool 12
busy-trigger-per-button 1
id mac 5067.AE21.4F10
type 7821
number 1 dn 12
cor incoming mobile-long default
presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
voice register pool 13
busy-trigger-per-button 1
id mac 5067.AE21.4E15
type 7821
number 1 dn 13
cor incoming mobile-long default
presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
voice register pool 14
busy-trigger-per-button 1
id mac 5067.AE21.4DF7
type 7821
number 1 dn 14
presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
voice register pool 15
busy-trigger-per-button 1
id mac 5067.AE21.4EAD
type 7821
number 1 dn 15
presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
voice register pool 16
busy-trigger-per-button 1
id mac 5067.AE21.4E9D
type 7821
number 1 dn 16
presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
voice register pool 17
busy-trigger-per-button 1
id mac 5067.AE21.4DD6
type 7821
number 1 dn 17
presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
voice register pool 18
busy-trigger-per-button 1
id mac 5067.AE21.4F96
type 7821
number 1 dn 18
presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
voice register pool 19
busy-trigger-per-button 1
id mac 5067.AE21.4F9C
type 7821
number 1 dn 19
cor incoming mobile-long default
presence call-list
dtmf-relay rtp-nte
codec g711ulaw
!
!
!
!
!
license udi pid CISCO2911/K9 sn FCZ190360AM
license accept end user agreement
hw-module pvdm 0/0
!
!
!
username cisco password 0 cish:
username romani secret 5 $1$5Klr$GneBF.AwmAgvMY4lW/Ylk1
username aa
username Acc
!
redundancy
!
process-max-time 50
!
!
!
!
!
interface Embedded-Service-Engine0/0
no ip address
shutdown
!
interface GigabitEthernet0/0
ip address 192.168.2.207 255.255.255.0
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!
interface GigabitEthernet0/1
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ip rip receive version 2
ip virtual-reassembly in
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!
interface GigabitEthernet0/2
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shutdown
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!
router rip
network 192.168.1.0
network 192.168.2.0
!
ip default-gateway 192.168.2.207
ip forward-protocol nd
!
ip http server
ip http secure-server
ip http path flash:
!
ip dns view default
dns forwarder 8.8.8.8
ip dns server
ip nat inside source list 150 interface GigabitEthernet0/1 overload
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/1
!
!
!
snmp-server community public RO
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tftp-server flash:rootfs78xx.10-1-1-9.sbn
tftp-server flash:sboot78xx.10-1-1-9.sbn
tftp-server flash:sip78xx.10-1-1-9.loads
tftp-server flash:rootf2
access-list 150 permit ip any any
!
control-plane
!
!
voice-port 0/0/0
trunk-group Mobile
connection plar opx 100
description Configured by 2911 4 FXO-0/0/0-Custom
caller-id enable
!
voice-port 0/0/1
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description Configured by 2911 4 FXO-0/0/1-Custom
caller-id enable
!
voice-port 0/0/2
!
voice-port 0/0/3
!
voice-port 0/1/0
!
voice-port 0/1/1
!
voice-port 0/1/2
!
voice-port 0/1/3
!
!
!
!
!
mgcp behavior rsip-range tgcp-only
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!
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!
mgcp profile -long
!
!
!
!
dial-peer cor custom
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!
!
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!
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!
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!
!
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!
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!
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!
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prefix 03
!
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!
dial-peer voice 2000 voip
corlist outgoing mobile-long
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destination-pattern 402
b2bua
session protocol sipv2
dtmf-relay sip-notify
codec g711ulaw
no vad
!
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trunkgroup pstn
trunkgroup Mobile
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description ** Inside Cairo **
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!
dial-peer voice 4 pots
trunkgroup Mobile
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!
dial-peer voice 5 pots
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prefix 015
!
dial-peer voice 6 pots
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!
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prefix 04
!
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trunkgroup long
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corlist outgoing mobile-long
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prefix 05
!
dial-peer voice 11 pots
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prefix 00
!
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corlist outgoing manager
destination-pattern 900T
prefix 00
!
dial-peer voice 21 pots
service stcapp
port 0/0/1
!
dial-peer voice 22 pots
service stcapp
port 0/0/2
!
!
!
!
gatekeeper
shutdown
!
!
telephony-service
max-ephones 58
max-dn 64
ip source-address 192.168.2.207 port 2000
url services http://10.1.10.1/voiceview/common/login.do
url authentication http://10.1.10.1/voiceview/authentication/authenticate.do
max-conferences 8 gain -6
web admin system name romani password cisco
web admin customer name romani1 password cisco
dn-webedit
time-webedit
transfer-system full-consult dss
!
!
ephone-dn 1 dual-line
number 111 no-reg primary
label 111
description Mr. Jeries Alghwaly
name Mr. Jeries Alghwaly
!
!
ephone 1
video
mac-address 1CE8.5DC8.D374
username "aa"
paging-dn 1
type 7945
button 1:1
pin 4100
!
!
!
ephone 5
!
!
!
!
line con 0
password xxxx
login
line aux 0
line 2
no activation-character
no exec
transport preferred none
transport output pad telnet rlogin lapb-ta mop udptn v120 ssh
stopbits 1
line vty 0 4
password xxx
login
transport input none
!
scheduler allocate 20000 1000
!
end

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[amralrazzaz]

this is my router 2911 config , should i do any additional config ?