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Replies

CME SIP Phone Calls in one-way (inside local network)

Martin Bauer
Level 1
Level 1

Hello everyone, first time here, need a little help.

I'm having some trouble to find a solution to the following problem.

Recently I've installed CME 9.1 using the router 2921. Most of the phones are SIPs, model 3905 (around 20 of them), with the last firmware updated.

Some users are complaining one way audio issue in internal calls, from a extension to another (only in sip phones)

With Wireshark capture I could see that RTP packets are being sent and receive by the router and not directly trough the phones. Is this normal in CME? When a call with problems occours (one way audio) there is no audio in one way, but router still sends confort noise packets.

Here is my config.

Thanks for any help.

Martin

##################################################################################33

!

System returned to ROM by power-on

System restarted at 11:29:23 BR Tue Jan 29 2013

System image file is "flash0:c2900-universalk9-mz.SPA.152-4.M2.bin"

Last reload type: Normal Reload

Last reload reason: power-on

!

voice service voip

no ip address trusted authenticate

allow-connections h323 to h323

allow-connections h323 to sip

allow-connections sip to h323

allow-connections sip to sip

fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none

sip

  registrar server expires max 3600 min 120

!

!

voice register global

mode cme

source-address 10.3.245.1 port 5060

max-dn 60

max-pool 70

load ATA-187 ATA187.9-2-3-1

load 3905 CP3905.9-2-1-0

authenticate realm all

timezone 17

time-format 24

date-format D/M/Y

tftp-path flash:

file text

create profile sync 0094230880392697

network-locale U1

user-locale U1 load /CME-locale-pt_BR-Portuguese-8.8.2.5.tar

ntp-server 10.3.244.7 mode directedbroadcast

!

!

voice register dn  1

number 9006

name Sala_Reuniao_02

label Sala de Reuniao 2

!

voice register dn  2

number 9007

name Sala_Reuniao_03

!

voice register dn  3

number 9008

name Sala Reuniao 04

!

!

voice register pool  1

id mac 8478.ACE6.09A2

type 3905

number 1 dn 1

template 1

codec g711ulaw

!

voice register pool  2

id mac 8478.ACE6.0573

type 3905

number 1 dn 2

codec g711ulaw

!

voice register pool  3

id mac 5897.1ECD.8F8D

type 3905

number 1 dn 3

codec g711ulaw

!

!

interface GigabitEthernet0/0

no ip address

duplex auto

speed auto

!

interface GigabitEthernet0/0.220

encapsulation dot1Q 220

ip address 10.3.245.1 255.255.255.0

ip helper-address 10.3.244.71

h323-gateway voip bind srcaddr 10.3.245.1

!

!

telephony-service

max-ephones 5

max-dn 5 no-reg both

ip source-address 10.3.245.1 port 2000

timeouts interdigit 5

timeouts busy 12

system message  XXXXXXXX

cnf-file location flash:

cnf-file perphone

user-locale U2 load CME-locale-pt_BR-Portuguese-8.8.2.5.tar

user-locale 2 PT

network-locale U2

load 7925 CP7925G-1.4.1SR1.LOADS

load 6941 SCCP69xx.9-2-1-0.loads

time-zone 17

time-format 24

date-format dd-mm-yy

max-conferences 8 gain -6

dn-webedit

time-webedit

transfer-system full-consult

transfer-pattern .T

create cnf-files version-stamp Jan 01 2002 00:00:00

!

ephone-dn  1  dual-line

number 9001

!

ephone  1

mac-address D867.D9E6.F57F

ephone-template 1

type 6941

button  1:1

!

1 Accepted Solution

Accepted Solutions

paolo bevilacqua
Hall of Fame
Hall of Fame

You may want to save yourself further time and go straight to the TAC with this.

The 3905 phones have already a poor reputation, if there is someone that has to get them working, that is Cisco, not the partner (or integrator).

By the way, media should not go to router in first place.

View solution in original post

20 Replies 20

paolo bevilacqua
Hall of Fame
Hall of Fame

You may want to save yourself further time and go straight to the TAC with this.

The 3905 phones have already a poor reputation, if there is someone that has to get them working, that is Cisco, not the partner (or integrator).

By the way, media should not go to router in first place.

Looks like 3905 has some problems indeed..

Cisco TAC has provide a new firmware to SIP 3905 (3905.9-2-2ES2) that in my case solved the problem. Unfortunelly the firmware is not available to direct download.

Thanks to everyone.

Tagir Temirgaliyev
Spotlight
Spotlight

you need probably to do

voice service voip

sip

bind control source-interface  GigabitEthernet0/0.220

bind media source-interface  GigabitEthernet0/0.220

how many SIP phones possible ?

voice register global

max-dn ?

max-pool ?

and how many phones possible under

telephony-service

max-ephones ?

Hi there, thanks for replys.

We are about to open a TAC to Cisco, but still trying to figure this out...

I'll try the bind command in sip and check the results.

telephony-service

max-ephones 5

max-dn 5 no-reg both

voice register global

.

max-dn 60

max-pool 70

I had a similar problem and I upgrade firmware on CP3905.9-2-2-0

  But the problem remains external call.

Hi ,

We are facing the exact same issue , and we dont find  3905.9-2-2ES2 to download in the cisco portal , please let us know if you have solved this issue with upgrade or any other chanegs that you made it working would be highly appriciated ,

Thanks

Purna

Purna..

You need to open a TAC case to get the firmware...Its not available for download

Cisco TAC has provide a new firmware to SIP 3905 (3905.9-2-2ES2) that in my case solved the problem. Unfortunelly the firmware is not available to direct download.

Please rate all useful posts

"opportunity is a haughty goddess who waste no time with those who are unprepared"

Please rate all useful posts

Hi ,

Yep, I got the firmaware from TAC and hoping to upgrade the firmaware tonight , will update you if there the issue is sorted completely after this

Thanks

Purna

Hi Purna!

Could you, please, send me (dsoloviov@gmail.com) that great firmware for 3905?

Hello Dmytro

Cisco has a new firnware available at the download page. I believe this firmware has already the necessary correction for this problem.

You may download direct from cisco.com/download, look for the firmware cmterm-3905.9-4-1-0.cop.sgn.

Martin

  points

Hi Martin,

I'll try the official firmware version 3905.9-4-1-0 next week. But I don't see any resolved caveat regarding one-way audio in the release notes... We'll see.

Nevertheless, thanks for recommendation.

Dmytro

Ooops... I've missed some resolved caveats in the release notes:

CSCtw59242  Calls established with no audio on IP Phones 3905

CSCuc17539  3905 Phone - No audio

I think I should try 3905.9-4-1-0 ASAP

Thank you guys!

In the phone config you could insert the command "no vad" (if not yet set) in voice register pool, this doesn't help me to solved the problem, but it was a indication from Cisco TAC.

Only after firmware upgrade the issue was solved.

Godd luck at your task and let us know if it helped.

Mártin

Hi ,

I am having a real hard time upgrading these phones :I have uploaded the firmaware to flas and ,set the tftp path , and create cnf profiles and unplug the 3905 phones and plugged ..but still the 3905 phoens are not upgraded..any advice is really appricated :

!

voice service voip

allow-connections h323 to h323

allow-connections h323 to sip

allow-connections sip to h323

allow-connections sip to sip

fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none

sip

  registrar server expires max 1200 min 300

!

voice class codec 1

codec preference 1 g711ulaw

codec preference 2 g711alaw

codec preference 3 g729r8

codec preference 4 g729br8

codec preference 6 g722-64

codec preference 7 g728

codec preference 8 g726r24

codec preference 9 g726r16

!

!

snmp-server group sla_snmp v3 auth

snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart

snmp-server enable traps entity-sensor threshold

snmp-server host 10.236.74.91 version 3 auth sla_snmpUser1

tftp-server flash:P0030801SR02.sbn

tftp-server flash:P0030801SR02.loads

tftp-server flash:P0030801SR02.sb2

tftp-server flash:P0030801SR02.bin

tftp-server flash:P00307020200.sbn

tftp-server flash:P00307020200.loads

tftp-server flash:P00307020200.sb2

tftp-server flash:P00307020200.bin

tftp-server flash:OS79XX.txt

tftp-server flash:APP3905.9-2-2ES2.zz

tftp-server flash:CP3905.9-2-2ES2.loads

tacacs-server host 10.236.74.87 key Ulsw@2960

tacacs-server host 10.236.74.86 key Ulsw@2960

tacacs-server directed-request

!

voice register global

mode cme

source-address 20.195.59.14 port 5060

max-dn 50

max-pool 50

load 3905 CP3905.9-2-2ES2

authenticate register

tftp-path flash:

create profile sync 0408573470766788

voice register pool  30

id mac 5478.1AE1.71E2

type 3905

number 1 dn 30

dtmf-relay rtp-nte

username 4990 password 1

description TktOffice_1

codec g711ulaw

above is my config , Please advice...

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