[cisco-voip] CME vs SRST

Mon Aug 20 18:13:27 EDT 2007

don't forget the limitations in endpoints of CME vs SRST. SRST can scale 
quite well.

also, I haven't read much about it b/c of the scaling issue, but it sounded 
like you needed a bit more configuration as well. the data sheet said 
something about 'one time configuration' as a benefit for SRST.

----- Original Message ----- 
From: "Kalle Tetto" <tettokalle at hotmail.com>
To: <cisco-voip at puck.nether.net>
Sent: Monday, August 20, 2007 6:07 PM
Subject: Re: [cisco-voip] CME vs SRST

> this is a feature since cme 4.0. and we are using this quite often.
>
> the only problem is to have both configs synchronized, but the good
> thing is cme does not cost more than srst.
>
> Ted Nugent schrieb:
>> Yep, its pretty new
>>
>> http://www.cisco.com/en/US/products/sw/voicesw/ps4625/products_configuration_guide_chapter09186a00807e0566.html
>>
>>
>> --- CarlosOrtiz at bayviewfinancial.com wrote:
>>
>>> Can CME be used as a fallback from Call Mgr instead
>>> of SRST? I have never
>>> thought so......but a previous admin has a CME
>>> config on a router at a
>>> location that has the following excerpt:
>>>
>>> ephone-hunt 1 sequential
>>>  pilot 4700
>>>  list 4739, 4740, 4743, 4744
>>>  final 9XXXXXXXXXX
>>>  preference 3 secondary 7
>>>  timeout 16, 16, 16, 16
>>> !
>>> ephone-hunt 2 sequential
>>>  pilot 4799
>>>  list 4702, 4701
>>>  final 9XXXXXXXXXX
>>>  timeout 16, 0
>>>
>>> The purpose of this config as explained by the
>>> business was when in "SRST"
>>> (I know this was CME config)  to route calls to a
>>> specific DID, hunt
>>> through lines and as a last resort dial outbound to
>>> a telco analog line
>>> with a mailbox to leave a message (important).
>>>
>>> We did SRST testing for all of our locations
>>> locations about 2 months ago
>>> and this particular location did not function at all
>>> with this "CME"
>>> config.  I have since converted them to SRST, had an
>>> outage and their
>>> calls did work.
>>>
>>> The business is claiming that this worked at one
>>> time during SRST but I am
>>> skeptical.   I am thinking that the previous admin
>>> told him it was
>>> configured but there was no real testing done.  Can
>>> anyone shed some light
>>> on this.  I need to know:
>>>
>>> 1) Can CME be used instead of SRST?
>>> 2) Can I accomplish what they want via SRST? (see
>>> red above - I think I
>>> can with the alias command but need to check)
>>>
>>>
>>>   Below is the full CME config if needed.
>>>
>>>
>>>  telephony-service
>>>  srst mode auto-provision all
>>>  srst dn line-mode dual
>>>  max-ephones 100
>>>  max-dn 200
>>>  ip source-address 10.X.X.X port 2000
>>>  max-conferences 8 gain -6
>>>  web admin system name X password X
>>>  dn-webedit
>>>  time-webedit
>>>  transfer-system full-consult
>>> !
>>> ephone-dn  1  dual-line
>>>  number 4744
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  2  dual-line
>>>  number 4743
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  3  dual-line
>>>  number 4702
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  4  dual-line
>>>  number 4745
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  5  dual-line
>>>  number 4739
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  6  dual-line
>>>  number 4742
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  7  dual-line
>>>  number 4740
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  8  dual-line
>>>  number 5539
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  9  dual-line
>>>  number 4701
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  10  dual-line
>>>  number 4710
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  11  dual-line
>>>  number 1010
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  12  dual-line
>>>  number 4703
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  13  dual-line
>>>  number 1012
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  14  dual-line
>>>  number 4704
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  15  dual-line
>>>  number 4636
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  16  dual-line
>>>  number 4705
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  17  dual-line
>>>  number 4706
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  18  dual-line
>>>  number 4707
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone-dn  19  dual-line
>>>  number 7045
>>>  description XXXXXXXXXX
>>>  name XXXXXXXXXX
>>> !
>>> ephone  1
>>>  mac-address 0016.4766.AB7C
>>>  button  1:1
>>> !
>>> ephone  2
>>>  mac-address 0015.F907.6BE1
>>> !
>>> ephone  3
>>>  mac-address 000E.833C.AE08
>>>  button  1:3
>>> !
>>> ephone  4
>>>  mac-address 0011.5C0E.6108
>>>  button  1:4
>>> !
>>> ephone  5
>>>  mac-address 0015.F914.1515
>>> !
>>> ephone  6
>>>  mac-address 0015.F914.0E19
>>>  button  1:6
>>> !
>>> ephone  7
>>>  mac-address 0015.F914.11FF
>>>  button  1:7 2:15
>>> !
>>> ephone  8
>>>  mac-address 0015.F914.0E4C
>>>  button  1:9
>>> !
>>> ephone  9
>>>  mac-address 00E0.7524.B312
>>>  button  1:10
>>> !
>>> ephone  11
>>>  mac-address 0015.FA0B.7202
>>>  button  1:12
>>> !
>>> ephone  12
>>>  mac-address 0017.9486.B302
>>>  button  1:14
>>> !
>>>
>> === message truncated ===>
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