Third Party SIP with CUCM

Unanswered Question
May 31st, 2010
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Hi,


In CUCM 7.1.3 we registered the Nortel 1120 SIP Phone. Phone is registred & from there we able to calls the numbers internally with in the cluster.


If i dialed some external numbers i'm getting fast busy reorder tone.


In CUCM logs we are getting "SIP 503 Service unavailable & unable to find the device handler".


"unable to find the device handler "----- what is it mean exactly ? with 503 messages we understood that CUCm itself unable to process the request.


Thanks in advance

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xaba-xaba Mon, 05/31/2010 - 23:10
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sh sip-ua status registar

you phone is present at this list?

There is my configuration - it's work ok (from internal and from external).

How protokol dialed from external? Sip or h.323?

Maybe you do this:

voice service voip
allow-connections h323 to sip
allow-connections sip to h323

My configuration:

ip cef
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.1.1 192.168.1.20
!
ip dhcp pool IpPhone
   network 192.168.1.0 255.255.255.0
   default-router 192.168.1.250
   option 150 ip 192.168.1.250
   option 66 ascii 192.168.1.250

ip multicast-routing
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
voice call send-alert
voice call disc-pi-off
voice rtp send-recv
!
voice service voip
address-hiding
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
no supplementary-service h450.2
no supplementary-service h450.3
supplementary-service h450.12
no supplementary-service sip moved-temporarily
no supplementary-service sip refer
redirect ip2ip
sip
  registrar server
!
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g711alaw
codec preference 3 g729r8
codec preference 4 g726r16
codec preference 5 g726r24
codec preference 6 g726r32
!
!

voice register global
mode cme
source-address 192.168.1.250 port 5060
max-dn 144

load 7906 SIP11.8-4-2S
authenticate register
timezone 32
time-format 24
date-format D/M/Y
hold-alert
dialplan-pattern 1 4.. extension-length 3
call-forward system redirecting-expanded
external-ring bellcore-dr3
tftp-path flash:
file text
create profile sync 0215281773239841
!
voice register dn  1
number 400
allow watch
pickup-call any-group
pickup-group 1
no-reg

!
voice register dn  2
number 401
allow watch
pickup-call any-group
pickup-group 1
no-reg
!
voice register dn  3
number 402
allow watch
pickup-call any-group
pickup-group 1
no-reg
!

voice register pool  1
id mac 000E.083A.2FA3
type 7906
number 1 dn 1
presence call-list
dtmf-relay rtp-nte sip-notify
voice-class codec 1
username 400 password 400
no vad
blf-speed-dial 1 400 label "400"
!
voice register pool  2
id mac 0019.306F.A30A
type 7906
number 1 dn 2
presence call-list
dtmf-relay rtp-nte sip-notify
voice-class codec 1
username 401 password 401
no vad
blf-speed-dial 1 401 label "401"
!
voice register pool  3
id mac 0014.0B0C.2A7E
number 1 dn 3
presence call-list
dtmf-relay rtp-nte sip-notify
voice-class codec 1
username 402 password 402
no vad
blf-speed-dial 1 402 label "402"

I hope, it's help

gpsriramdc Wed, 06/02/2010 - 03:50
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Hi,


I'm registring Nortel Phone with CUCM only. Moreover i can able to my local extensions. but some of the calls only i'm getting 503 message with unable to find device handler.


Thanks.

imanassypov Thu, 09/08/2011 - 13:15
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It is peculiar, but I can only recieve calls via ekiga from cucm. for any originated call I am getting 503, with "unable to find device handler for the request received..."


Does anyone have any suggestion where to look?


thanks

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