Hi Greger,
If I am to create an alias for every phone i.e. an alias for 1234 to 1234dt and an alias for 134 to 1234pda etc, wouldn't this mean that I would have to issue:
Serctl alias add 1234 sip:1234dt@CONTACTADDRESS.
Doesn't this limit mobility in that if the user changes IP address(i.e. their contact address), the alias no longer applies and the sequential forking mechanism wont work?
Many thanks for ideas, Aisling.
-----Original Message----- From: Greger V. Teigre [mailto:greger@teigre.com] Sent: 01 July 2005 06:42 To: Aisling; 'Bogdan-Andrei Iancu'; serusers@lists.iptel.org Subject: Re: [Serusers] Associating a contact address with a location
Aisling, After pondering this for some time now, I think your best bet would be to register each phone with a different username with predefined suffixes: 1234dt 1234sp 1234whatever
You could have one account 1234 with password used for all accounts and then you add the other usernames to the uri table (to pass check_from. Each phone will thus use 1234 as auth user and 1234dt or whatever as username. 1234dt will be registered as the location and in order to route calls, you will either have to use your serial forking with CPL or register fixed aliases in the alias table from 1234 (probably the number called) to each of 1234dt, 1234sp etc. lookup("aliases") should then fork the call to all.
g-)
Aisling wrote:
Hi,
Sorry to resubmit on much the same topic as before (Portal for forking call to preferred end device-sequential ringing) but I was wondering if anyone had any further ideas on how to associate a particular contact address with a location. i.e. a user can choose that their preferred location is their desktop phone and I need to devise some way to know that a particular contact address is associated with the desktop phone.
I was thinking the user must either enter the device ip addresses manually so I can search the contact based on IP address (This sucks in terms of NAT, scalability and losing mobility over networks) OR I could perhaps stipulate that a user cannot have two of the same device e.g. cant have two BT100 hardphones and I could search the location table based on model. I think either of these options aren't great....Which is why I was wondering if anyone had any better ideas?
Many Thanks, Aisling.
p.s. I currently retrieve the users contact address and q value via a web interface using the serctl fifo interface.
-----Original Message----- From: Bogdan-Andrei Iancu [mailto:bogdan@voice-system.ro] Sent: 22 June 2005 12:45 To: Aisling Cc: 'Greger V. Teigre'; jh@tutpro.com Subject: Re: [Serusers]CPL - Portal for forking call to preferredenddevice-sequential ringing
Hi Aisling,
There are many ways to implement serial forking - like using CPL, LCR or
AVPOPS. But the main idea (if I getting right from your initial email) is to allow the user to order his contacts for the same account (like account userx that have contact_pda_x, contact_PC_x, contact_office_x, etc). So you have all this contacts in user location, you have several mechanism for serial forking, but you are missing the link - to get the contacts from user location and to feed any of the serial forking mechanism. This
is the big problem.
even if you use CPL, you need to place in each location node the contacts (and not the AOR) of the user, contacts which are dynamically stored only in user location.
what you are describing below can be possible only if you a user (as person) has different sip accounts (SIP users) for each of his devices. Other way I don't see how you can place in the CPL script the "phone1" and "phone2" addresses.
and just to answer you to the CPL- related questions (from implementation point of view):
- each user can have only one script - if you load a new script, the
previous one will be lost (overwritten). If you can different services via CPL (like screening and no-answer), you need to mix them in the same
script during provisioning.
- if you want to delete a CPL script via FIFO, use the REMOVE_CPL
command: serctl fifo REMOVE_CPL user@domain
regards, bogdan
Aisling wrote:
Hello,
Many thanks for the ideas so far. I looked at CPL Greger and I think that provides a very simple solution to this - a simple Call forward on no answer script.
I have an included an example that I came across below. If a user wants to modify the order of the devices a call should be sent to, then I simply have to retrieve the information from the user via the web interface and provision a new cpl script. I think this solves the problem - Does anyone foresee any problems with this or think it has disadvantages?
I do have two minor questions if I am to go ahead with this direction though:
- If a particular user already has a cpl script e.g. a call
screening script uploaded to the database and they then upload this forward on no answer script, will it overwrite the original script? i.e. can there only be one cpl script per user?
2)How can a cpl script be "undone" or deleted? Must it be overwritten
or
is there a way of simply removing it(without using mysql commands)?
Example CPL: Call Forward on No Answer
<?xml version="1.0">
<cpl> <subaction id="phone2"> <location url="sip:2000@phone2"> <proxy /> </location> </subaction>
<incoming> <location url="sip:2000@phone1"> <proxy timeout="8"> <noanswer> <sub ref="phone2"/> </noanswer> </proxy> </location> </incoming> </cpl>
Many Thanks, Aisling.
-----Original Message----- From: Greger V. Teigre [mailto:greger@teigre.com] Sent: 22 June 2005 05:42 To: Aisling O'Driscoll; jh@tutpro.com Cc: samuel.osorio@nl.thalesgroup.com; ashling.odriscoll@cit.ie; serusers@lists.iptel.org Subject: Re: [Serusers] Portal for forking call to preferredenddevice-sequential ringing
Aisling O'Driscoll wrote:
Ok, just to recap - cos Im getting a little bit confused ;)
I have two choices(?)
- Somehow invoke sipsak to configure permanent addresses with a
particular q value. 2. Develop a FIFO method to change q value.
Yes. Except that I don't know if anybody verified that q value cannot
be
changed with today's FIFO. I just asked the question...
Am I correct in thinking directly modifying the usrloc table in the database is out of the question because the changes cant be updated except by SER itself in which case a reboot would required - Correct?
Correct. "SER itself" is here either serctl, sipsak or FIFO.
Also lcr module (load_contacts() etc) isnt suitable for per user configurable sequential forking?
I don't know about that. There is definitely a q-value based functionality there.
Have others tried to implement similar functionality or is it usually a generic site wide sequential forking policy?
I think using CPL could be an option. Have you looked at CPL and the
cpl
module? g-)
Many thanks for the opinions and help so far. Aisling.
---- Original Message ---- From: jh@tutpro.com To: greger@teigre.com Subject: Re: [Serusers] Portal for forking call to preferredenddevice-sequential ringing Date: Tue, 21 Jun 2005 21:41:54 +0300
Greger V. Teigre writes:
:-D Yes, that is true. But I didn't know that you could change
q-value in
FIFO?
if that is not possible, then you can always use sipsak to install "permanent" registrations with a given q value. sipsak has an additional advantage over fifo in that you can apply permissions
check
to sipsak registration, but not to fifo registration.
-- juha
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