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Holbrook Bunting

SIP Client Phone and Voicemail

I am running CUCME 4.1.

I have voicemail running on an asterisk box (through mwi-server in sip-ua).

I have added a SIP phone to CUCME, with the following below.

When the client is connected to CUCME, it sends the call to voicemail with

no problem.. When it is not connected, it does not and returns 408 which

results in a congestion tone to the SIP trunk and invalid number to SCCP clients

calling it.

How can I get CUCME to treat the call in the same way it does if calling a SCCP

phone whilst disconnected, sending it to voicemail as busy?

voice service voip

allow-connections sip to sip

no supplementary-service sip refer

fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback cisco


  bind control source-interface FastEthernet0/0

  bind media source-interface FastEthernet0/0

  registrar server expires max 3600 min 300


voice register global

mode cme

source-address port 5060

max-dn 10

max-pool 10

authenticate register

authenticate realm all

date-format D/M/Y

mwi stutter

voicemail 1571

tftp-path flash:

create profile sync 0022182970291169

network-locale GB

ntp-server mode directedbroadcast



voice register dn  1

number 2006

call-forward b2bua busy 1572

call-forward b2bua mailbox 2006 

call-forward b2bua noan 1571 timeout 20

allow watch




voice register pool  1

id mac 0000.0000.0000

number 1 dn 1

presence call-list

dtmf-relay rtp-nte

username 2006 password #####

codec g711alaw

no vad



Try this..

voice register dn 1

call forward b2bua unreachable XXXX where xxxx=voice mail pilot number

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"There is a wideness in God's mercy Like the wideness of the sea.There's a kindness in His justice Which is more than liberty"

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That seems to work (though documentation says the commands been removed).

It only seems to work after the sip registration has expired and only sip-to-sip.

sccp-to-sip still gives an "Unknown number" message.

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