7942 Phone not registering on SRST CME

[Peter Valdes]

Hi,

I have setup the following cluster:

CUCM 7.1.5

Cisco 3925 with (C3900-UNIVERSALK9-M), Version 15.2(3)T and uck9 technology for SRST

I have setup the SRST under CUCM to point to router aswell as added that SRST service under the device pool of the 7942 IP Phone.

When I turn off the CallManager services on both Pub and Sub, my 7942 tries to registers but is not getting anywhere.

Here is my CME config

ip dhcp pool 123_VOICE

network 10.Y.Y.0 255.255.255.0

default-router 10.Y.Y.254

option 150 ip 10.Y.Y.1

!

interface GigabitEthernet0/1.900

description VOICE NETWORK

encapsulation dot1Q 900

ip address 10.Y.Y.254 255.255.255.0 secondary

ip address 10.Y.Y.5 255.255.255.0

ip flow ingress

ip flow egress

ip virtual-reassembly in

h323-gateway voip interface

h323-gateway voip bind srcaddr 10.Y.Y.5

!

interface GigabitEthernet0/2

description WAN

ip address X.X.X.X 255.255.255.252

!

telephony-service

srst mode auto-provision none

srst dn template 1

srst dn line-mode dual

max-ephones 265

max-dn 600

ip source-address 10.Y.Y.1 port 2000

time-zone 41

date-format dd-mm-yy

dialplan-pattern 1 00000000 extension-length 8 extension-pattern 11111111

voicemail 11111111

max-conferences 8 gain -6

transfer-system full-consult

secondary-dialtone 9

The phone is using phone load SCCP42.9-1-1SR1S.

Help!

Thanks

[Mohammed al Baqari · Accepted solution]

Hi,

The IP configured in CME for telephony-service and TFTP isn't correct (10.Y.Y.1). Your router Gi0/1.900 is having IP 10.Y.Y.5.

Correct this and try.

[Peter Valdes]

Thanks.

Its working now. Sorry, first time using SRST and CME.

[Mohammed al Baqari]

Don't be sorry mate ... This how we learn

[neelesh.gaekwad]

hey guys i have a similar issue with following setup:

CUCM 8.6.2    

Cisco 2901, Version 15.2(1)T with  uck9 technology for CME-SRST.

I have setup the SRST under CUCM to point to router aswell as added that SRST service under the device pool of the 7942 IP Phone.

The Configuration was all correct in 2901 CME-SRST router as wee as CUCM.8.6. My IP Phone settings were also correct one.

But the problem was that, my 7942 series IP Phones only can't show required template on IP Phone screen in SRST Fallback mode. Only the SRST fallback message displays. My 7940 & 7962 series IP Phones were working fine.

The IP Phone was having IOS version SCCP42.9-2-1S, i have DOWNGRADE IT TO  8.3.3 version.

After which the phone reflects the template and the DN.