[asterisk-users] Mobile SIP Client

[Jim Hanlon]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Shad Mortazavi
> Sent: Thursday, July 27, 2006 4:36 AM
> To: asterisk-users at lists.digium.com
> Subject: [asterisk-users] Mobile SIP Client
> 
> Dear All,
> 
> I'm looking for a mobile SIP client to use with Asterisk.
> 
> Has anyone got experience in this area and can you advise me 
> of a product?
> 

Do you have any preference for the mobile operating system? Windows Mobile 5 is an obvious choice: lots of handhelds already have
it, it is a well-understood product with mature development tools available, and it is a reasonably open system.

On the other hand, linux ports to PDAs are common these days, and, depending on your available developer talent, may present a more
economical product development path.

If you are contemplating a WiFi airlink, be sure to do your due diligence on the topic of RF propagation--early reports of SIP over
WiFi are sobering.

If you are thinking of multi-airlinks, either WiFi && Bluetooth or WiFi && cellular, it is best to reference what the handheld
manufacturers are doing in this complex area. Take a look at PCTEL's Roaming Client work for guidance. For a good summary of the
issues, look at the table of contents of an industry report on mobile handset convergence:
http://www.disruptive-analysis.com/sip_and_ims_handsets_toc.htm

HTH,

James Hanlon