Well, I’ve been having issues with my SIP registration from iiNet working within Cisco CME.

When doing a debug ccsip all, it appeared that I wasn’t receiveing a SIP INVITE, and that I would constantly throw out REGISTER’s but not hear anything back.

Yesterday I started thinking that maybe there was a something in my firewall ACL that was blocking the connection, but when I looked at it i couldn’t see anything wrong with it. I decided to add permit tcp any any eq 5060 just to make sure things were happening, and then I saw this response:

10 permit tcp any any eq 5060 (18 matches)

So things were happening but something still wasnt right.

I had spent most of the day looking over the config and trying different solutions around the net but nothing helped. This morning I decided to revisit the config and started with the ACL’s. Then I noticed this.

240 deny udp any any eq 1024 (128 matches)

I had borrowed an ACL from our work access layer switches, designed to filter out commonly used virus ports and this was one of the entries. It looked like the SIP response from iiNet was replying on udp port 1024 for the INVITE message which was of course blocked. As soon as I removed this registration went straight through and calls started routing.

Hope this helps saves the headaches that i had.

//EDIT
Fixed, see above posts.

//EDIT
it looks like something is wrong in this config. CME works perfectly however the SIP registration fails, for some reason I never receive a SIP INVITE. So be wary when using this config.

I have had my Cisco 2621XM working with Call Manager Express for some time now, and have had calls routing through iiNet’s SIP Servers, however recently I lost some configuration and had to rebuilt it again.

So I have decided to post it up here.

Note that this is only the SIP and CME configuration and heaps more is needed to actually run the router.

aaa authentication login LOCAL_AUTH local
aaa session-id common
!
ip dhcp pool p900
network 10.5.0.0 255.255.0.0
dns-server 203.0.178.191
default-router 10.5.0.1
option 150 ip 10.5.0.1
domain-name cme
!
voice service voip
sip
localhost dns:iinetphone.iinet.net.au
!
!
voice class codec 1
codec preference 1 g729br8
voice translation-rule 1
rule 1 /02XXXXXXXX/ /02XXXXXXXX/
rule 2 /XXXXXXXX/ /02XXXXXXXXX/
!
voice translation-rule 2
rule 1 /02XXXXXXXX/ /XXXXXXXX/
!
!
voice translation-profile Incoming_Number
translate called 2
!
voice translation-profile Outgoing_Number
translate calling 1
!
tftp-server flash:P00308000400.bin
tftp-server flash:P00308000400.loads
tftp-server flash:P00308000400.sb2
tftp-server flash:P00308000400.sbn
!
sccp ccm 10.5.0.1 identifier 1
!
sccp ccm group 1
associate ccm 1 priority 1
!
!
dial-peer voice 1 voip
description STD Calls
translation-profile incoming Incoming_Number
translation-profile outgoing Outgoing_Number
destination-pattern .T
voice-class codec 1
session protocol sipv2
session target dns:sip.nsw.iinet.net.au
dtmf-relay sip-notify rtp-nte
no vad
!
!
sip-ua
authentication username 02XXXXXXXX password XXXX realm iinetphone.iinet.net.au
no remote-party-id
retry invite 4
retry response 3
retry bye 2
retry cancel 2
retry register 5
timers register 300
mwi-server dns:sip.nsw.iinet.net.au expires 3600 port 5060 transport udp unsolicited
registrar dns:sip.nsw.iinet.net.au expires 3600
sip-server dns:sip.nsw.iinet.net.au
!
!
telephony-service
load 7960-7940 P00308000400
max-ephones 5
max-dn 5
ip source-address 10.5.0.1 port 2000
system message CCM4
time-format 24
date-format dd-mm-yy
voicemail 9999
mwi relay
max-conferences 4 gain -6
moh flash:music-on-hold.au
web admin system name XXXX XXXX
dn-webedit
time-webedit
transfer-system full-consult
transfer-pattern ....
directory entry 1 0001 name XXXX
create cnf-files version-stamp 7960 Oct 14 2008 07:28:46
!
!
ephone-dn  1  dual-line
number 02XXXXXXXX
label Main Phone
description Main Phone
name Main Phone
no huntstop
!
!
ephone  1
description Home 7940
mac-address 0011.93B6.CE9C
speed-dial 1 04XXXXXXXX label XXXX
type 7940
button  1:1

As part of my current job, I manage IP telephony for a building with about ~600 endpoints.

In .AU we go from +10GMT to +11GMT for daylight savings which come into effect the first Sunday of October. When we swapped over the times for daylight savings we noticed that some of the phones pull time from different sources. I searched for a definitive answer but couldnt find one in time.

Here is what we experienced. We run Cisco Call Manager 4.2(3)sr3a. The 7970 and 7975’s pull time directly from the windows taskbar time. So whatever time is showing on the taskbar is the time that will be shown on the 70 and 75’s. The 7906, 7940 and 7960 are a bit different. They seemed to pull the time from the CCM Date/Time group. The DT group is influenced by the Windows time, however the DTG will apply DST automatically.

This is what we experienced. If Windows was set at +10GMT and the DTG was also set at +10GMT (both in the sydney tz) and the time was 1PM, the 7X’s would show 1PM but all other phones would show 2PM. This is because the DT group thinks hey, Windows is +10GMT but I know were in DST so i will apply another 1 hour.

We were worried about placing either the Windows or CCM time in different TZ’s for logging reasons. If something was to happen down the track, the logs still need to reflect the right time.

I believe that these inconsistencies may have been caused by a number of factors inclusive of old firmware versions and windows patches not being applied. However due to this being a production network, upgrades on the fly are risky to do.

The fix here was to apply +10GMT(Syd) to Windows, set at the right time, and also +10GMT to CCM, but place it in the Brisbane TZ. This removed the errors as Brisbane does not participate in DST, but also kept both times at +10 to satisfy the logs.

Hope this helps some one.

Currently i have a Billion BiPAC 7402GL ADSL2+ modem/router and i set up a few virtual servers with # symbols in their name.

When deleting or editing the virtual server it does not pass the # symbol to the page, so when deleting or editing the object the following error occurs:

webserver:Couldn’t find ‘ImFireWall.ImFwInterfaces.ipwan.ImFwNATresvMaps.Art HTTPD ‘ as a local symbol or object instance

My virtual server was named Art HTTPD #1, and you can see in the error message it didnt pass the #1 at all.

To fix this you must delete occurrences of virtual servers with # in the name, and then recreate them. I modified the source of the delete page to correct it.

http://www.ecks90.com/files/billiondelvs.txt

Just change the NAMEOFYOURVS to whatever your virtual server, rename .txt to .html and open the page and it will delete the object