[asterisk-dev] Re: ISUP over MGCP and/or SIP - A Project and, BOUNTY

[Ahmed Naji]

asterisk-dev-request at lists.digium.com wrote:

<SNIP>
> Today's Topics:
>
> 1. ISUP over MGCP and/or SIP - A Project and BOUNTY (Ahmed Naji)
> 2. Re: ISUP over MGCP and/or SIP - A Project and BOUNTY
> (alex at pilosoft.com)
<SNIP>
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 09 May 2006 00:37:56 +0100
> From: Ahmed Naji <worldentropy at yahoo.co.uk>
> Subject: [asterisk-dev] ISUP over MGCP and/or SIP - A Project and
> BOUNTY
> To: asterisk-dev at lists.digium.com
> Message-ID: <445FD654.2090109 at yahoo.co.uk>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> List,
>
> I need to implement ISUP functionality by utilising Asterisk as a Call
> Agent (3PCC in case of SIP), and one ore more Cisco AS5350 or similar as
> media gateways.
>
> The setup will be such that F-Links will be extracted from the PRI
> circuit(s) and handed over to Asterisk for call processing. The
> interface would be implemented as a channel (e.g. chan_mgcpisup), much
> the same way as chan_ss7 is implemented. Where implementation is via
> SIP, Asterisk would implement 3rd Part Call Control to get the gateway
> to talk ISUP, and handle the signalling payload in a SIP-enveloped
> message. The latter (i.e. SIP implementation is preferred).
>
> I am thinking to handover the signalling in an H.225 payload, process it
> and hand it over back to the gateway the same way it came: i.e.
> SCCP/MTP3/MTP2 ..etc.
>
> Bounty wise, I am thinking $5,000 for a documented, demostrable version,
> with further bounties put on mile-stones.
>
> Thanks,
>
> Ahmed Naji
> 5G Networks LTD
>
>
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>
> ------------------------------
>
> Message: 2
> Date: Mon, 8 May 2006 20:06:34 -0400 (EDT)
> From: alex at pilosoft.com
> Subject: Re: [asterisk-dev] ISUP over MGCP and/or SIP - A Project and
> BOUNTY
> To: Asterisk Developers Mailing List <asterisk-dev at lists.digium.com>
> Message-ID:
> <Pine.LNX.4.44.0605082003290.7535-100000 at bawx.pilosoft.com>
> Content-Type: TEXT/PLAIN; charset=US-ASCII
>
> On Tue, 9 May 2006, Ahmed Naji wrote:
>
>> The setup will be such that F-Links will be extracted from the PRI
>> circuit(s) and handed over to Asterisk for call processing. The
>> interface would be implemented as a channel (e.g. chan_mgcpisup), much
>> the same way as chan_ss7 is implemented. Where implementation is via
>> SIP, Asterisk would implement 3rd Part Call Control to get the gateway
>> to talk ISUP, and handle the signalling payload in a SIP-enveloped
>> message. The latter (i.e. SIP implementation is preferred).
>>
>> I am thinking to handover the signalling in an H.225 payload, process it
>> and hand it over back to the gateway the same way it came: i.e.
>> SCCP/MTP3/MTP2 ..etc.
>>
>> Bounty wise, I am thinking $5,000 for a documented, demostrable version,
>> with further bounties put on mile-stones.
> I think bounty is too low.
>
> Also, possibly, a better idea is to enhance chan_ss7 to support (instead
> of zaptel) the SIGTRAN stack (from openss7.org). SCTP *is* a standardized
> protocol after all...
>
Hi Alex,

Well .. SIGTRAN enhancement to chan_ss7 is indeed a good idea. Reference 
the bounty, I don't particularly think it's too low, as this is only for 
the first mile-stone.

Thanks,

Ahmed.

		
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