05-13-2013 05:37 AM - edited 03-16-2019 05:17 PM
Guys,
Im trying to get SRST to work with 8941 / 8961 in SIP mode. The compatibility matrix says this should work provided my phones are above FW 9.2.2. My phones are 9.3.2.
http://www.cisco.com/en/US/docs/voice_ip_comm/cusrst/requirements/guide/srs90spc.html
I have a config on my gateway, but to be honest I don't think this is the problem at the moment. The phones dont even seem to have an SRST reference. There is NOTHING in the menus for any of the 8941/8961 phones that lists an SRST reference. When I browse to the phone IP Address, I still do not see it. However, if I TFTP the config of the phone, it is def getting an SRST reference:
<srstInfo uuid="{09836056-6fcc-e54a-94c8-9e025ea25c22}">
<name>SRST-Ref</name>
<srstOption>User Specific</srstOption>
<userModifiable>true</userModifiable>
<ipAddr1>10.201.2.250</ipAddr1>
<port1>2000</port1>
<ipAddr2></ipAddr2>
<port2>2000</port2>
<ipAddr3></ipAddr3>
<port3>2000</port3>
<sipIpAddr1>10.201.2.250</sipIpAddr1>
<sipPort1>5060</sipPort1>
<sipIpAddr2></sipIpAddr2>
<sipPort2>5060</sipPort2>
<sipIpAddr3></sipIpAddr3>
<sipPort3>5060</sipPort3>
<isSecure>false</isSecure>
</srstInfo>
If I convert the phones to SCCP mode they work in SRST fine. In SIP mode they just sit there saying "phone unregistered" when we have a WAN failure. I know there is a difference between SIP and SCCP SRST configurations on the gateway, but I have configured for both:
voice service voip
ip address trusted list
ipv4 10.98.91.0 255.255.255.0
ipv4 10.98.92.0 255.255.255.0
ipv4 10.201.2.0 255.255.255.0
ipv4 10.201.0.0 255.255.255.0
ipv4 10.99.200.31
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
fax protocol pass-through g711alaw
h323
sip
bind control source-interface GigabitEthernet0/1.2
bind media source-interface GigabitEthernet0/1.2
registrar server expires max 600 min 60
voice register global
max-dn 50
max-pool 10
!
voice register pool 10
id network 10.201.2.0 mask 255.255.255.0
number 1 41... preference 1
preference 1
alias 1 41000 to 41198
dtmf-relay rtp-nte cisco-rtp sip-notify
codec g711ulaw
no vad
call-manager-fallback
max-conferences 10 gain -6
transfer-system full-consult
ip source-address 10.201.2.250 port 2000
max-ephones 20
max-dn 50
system message primary CM DOWN FEATURES DISABLED
time-zone 23
time-format 24
date-format dd-mm-yy
The problem seems to be that the SIP phones just do not try and register with anything once they lose CM, and have nothing showing in any menus referencing SRST at all. I def have an SRST reference on the device pool, and the phones are getting the SRST reference in the config file as you can see above. Why do they not show it, or try and register with it?
Thanks for your help in advance
05-13-2013 07:41 AM
You need to specify an IP address for SIP Phones on your SRST Reference in CUCM. It is a separate field from the SCCP phones. Once you set it, perform an apply config and full reset of the phone so it picks up an updated XML config file.
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05-13-2013 07:44 AM
Thanks Jonathan, I have specified this though, and as you can see from my post above it is receiving it.
Extract from the phones config I manually TFTP'd from the CUCM:
Thanks
06-13-2013 04:31 PM
I am having the exact same problem with SCCP, SRST , if you downgrade to 9.2..2 from 9.3.2 you will see the SRSt reference
On the phone and SRST works. This problem only appeared after I upgraded the firmware to get phone walloper which was not available on 9.2.2. I opened a TAC case thus afternoon.
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