user143: With the release of bitcoin version 0.6.1rc2, it is now possible to do M-of-N required signature transactions in the main network. But how does one actually perform such a transaction?
I've been trying to piece together how to do this mostly from the BIP 11 and API calls list pages on https://en.bitcoin.it/wiki/
I guess you can use 'addmultisigaddress' call to bitcoind to add a multisignature address to your wallet and then send coins to that address. This is the part you set up, say, an escrow.
However, I can't find the bitcoind call to create a transaction for multiple signing or the call to sign such transaction.  In other words, how do you send coins from a multisignature address? How do you release the tied-up coins?

user53: Bitcoin version 0.6.1 doesn't have useful multisignature support yet, either in the GUI or via the RPC interface, because there is no support for partially signing a multisignature transaction.
What is supported:  creating a multisignature transaction (using addmultisigaddress), and sending to a multisignature address (either your own or somebody else's).
Testing spending of multisignature transactions-- if all of the private keys required to spend a multisignature transaction are in the wallet, then those coins are added to the wallet's total bitcoin balance and that transaction will be spent if the normal coin-selection code decides to use them for a spending transaction.
Pull request 1456 adds low-level support in the RPC interface for multi-device/multi-person multisignature transactions.

143: <p>With the release of bitcoin version 0.6.1rc2, it is now possible to do M-of-N required signature transactions in the main network. But how does one actually perform such a transaction?</p>

<p>I've been trying to piece together how to do this mostly from the BIP 11 and API calls list pages on <a href="https://en.bitcoin.it/wiki/">https://en.bitcoin.it/wiki/</a></p>

<p>I guess you can use 'addmultisigaddress' call to bitcoind to add a multisignature address to your wallet and then send coins to that address. This is the part you set up, say, an escrow.</p>

<p>However, I can't find the bitcoind call to create a transaction for multiple signing or the call to sign such transaction.  In other words, how do you send coins from a multisignature address? How do you release the tied-up coins?</p>
 53: <p>Bitcoin version 0.6.1 doesn't have useful multisignature support yet, either in the GUI or via the RPC interface, because there is no support for partially signing a multisignature transaction.</p>

<p>What <strong>is</strong> supported:  creating a multisignature transaction (using addmultisigaddress), and sending to a multisignature address (either your own or somebody else's).</p>

<p><em>Testing</em> spending of multisignature transactions-- if <strong>all</strong> of the private keys required to spend a multisignature transaction are in the wallet, then those coins are added to the wallet's total bitcoin balance and that transaction will be spent if the normal coin-selection code decides to use them for a spending transaction.</p>

<p><a href="https://github.com/bitcoin/bitcoin/pull/1456">Pull request 1456</a> adds low-level support in the RPC interface for multi-device/multi-person multisignature transactions.</p>
