CME 10.5 CP-8831 no incoming calls from SCCP phone

[Alexandr Gorshkov]

Hello everydody

According 

https://supportforums.cisco.com/discussion/12216991/ip-phone-8831-cme

installed conference station CP-8831

- CME 10.5

- load 8831 sip8831.9-3-3-5

when i call from CP 6921 - SCCP (106) to CP-8831  SIP (111) , got busy

Loggs

Received: 
SIP/2.0 406 Not Acceptable

!
voice register pool-type  8831
 phoneload-support
 description Cisco IP Phone 8831
 reference-pooltype 6921
!
voice register global
 mode  cme
 source-address 192.168.202.126 port 5060
 max-dn 20
 max-pool 20
 load 8831 sip8831.9-3-3-5
 tftp-path flash:
 file text
 create profile sync 000651506569181A
 user-locale RU
!
voice register dn  10
 number 111
 name Conference Room 111
!
voice register pool  10
 busy-trigger-per-button 1
 id mac AC44.F211.E78D
 type 8831
 number 1 dn 10
 dtmf-relay sip-kpml
 codec g711ulaw
!
!

......

!
telephony-service
 sdspfarm units 10
 sdspfarm transcode sessions 128
 sdspfarm tag 1 cfb70ca9b1203c1
 sdspfarm tag 2 mtp70ca9b1203c1
 video
 no auto-reg-ephone
 max-ephones 40
 max-dn 70
 ip source-address 192.168.202.126 port 2000
 cnf-file location flash:
 cnf-file perphone
 user-locale RU load CME-locale-ru_RU-Russian-10.5.3.0.tar
 network-locale RU
 load 6921 SCCP69xx.9-4-1-3SR1
 load 6941 SCCP69xx.9-4-1-3SR1
 load 6961 SCCP69xx.9-4-1-3SR1
 time-format 24
 date-format dd-mm-yy
 max-conferences 8 gain -6
 call-forward pattern 9T
 call-forward pattern ...
 call-forward pattern .T
 moh enable-g711 "music-on-hold.au"
 transfer-system full-consult
 transfer-pattern 9T
 transfer-pattern ...
 secondary-dialtone 9
 create cnf-files version-stamp Jan 01 2002 00:00:00
!  

tftp-server flash:6921_9_4_1/SCCP69xx.9-4-1-3SR1.loads alias SCCP69xx.9-4-1-3SR1.loads
tftp-server flash:6921_9_4_1/SCCP69xx.9-4-1-3SR1.zz.sgn alias SCCP69xx.9-4-1-3SR1.zz.sgn
tftp-server flash:6921_9_4_1/DSP69xx.12-4-122-99.131025.zz.sgn alias DSP69xx.12-4-122-99.131025.zz.sgn
tftp-server flash:6921_9_4_1/BOOT69xx.0-0-0-14.zz.sgn alias BOOT69xx.0-0-0-14.zz.sgn

Loggs inclosed

Can anybody help?

[Manu Jose]

Hello,

The phone send 406 unacceptable message for the INVITE send by the CME.

This issue is similar to bug CSCug37105:- https://tools.cisco.com/bugsearch/bug/CSCug37105/?reffering_site=dumpcr

In the INVITE, the line "Accept-Language: ru;q=0" may be causing the issue,  the phone not understanding the header and not processing/discard the INVITE.

>> In order to remove this header, configure a SIP profile on the router.
Router(config)#voice class sip-profiles 100
Router(config-class)#request invite sip accept-language remove

>> Then we can applied this profile globally.
Router(config)#voice serv voip
Router(conf-voi-serv)#sip
Router(conf-serv-sip)#sip-p
Router(conf-serv-sip)#sip-profiles 100

Also please note of another bug CSCum05299:- https://tools.cisco.com/bugsearch/bug/CSCum05299/?reffering_site=dumpcr, can cause calling issues with SIP Phones.

Workaround, configure “no ip address trusted list”  and “no ip address trusted authenticate” under “voice service voip”.