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The solution proposed by Richard works and it is working in your case, in the sense that the called route is being executed.</div>
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However, this method does not remove any conditions of specific functions on which routes they can be called from, and the called route is not a reply route it is a basic route. So the error is valid.</div>
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This mechanism can be used generally to break up processing in large routes, but any functions which require execution from a specific route type cannot be moved to the nested route. What you need is something like this:</div>
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<span style="background-color: rgb(255, 255, 255);"> route[reply_processing_1] {</span></div>
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<span style="background-color: rgb(255, 255, 255);"> # do general reply processing step 1</span></div>
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<span style="background-color: rgb(255, 255, 255);"> }</span></div>
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<div style="direction: ltr; font-family: monospace;"><span style="font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> r</span>oute[reply_processing_2] {</div>
<div style="direction: ltr; font-family: monospace; color: rgb(0, 0, 0);"> # do general reply processing step 2</div>
<div style="direction: ltr; font-family: monospace; color: rgb(0, 0, 0);"> }</div>
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<span style="background-color: rgb(255, 255, 255);"> onreply_route[MAIN] {</span></div>
<div style="direction: ltr; font-family: monospace;"><span style="font-size: 16px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> r</span><span style="background-color: rgb(255, 255, 255);">oute(</span><span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">reply_processing_1</span><span style="font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">);</span></div>
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<div style="direction: ltr; font-family: monospace;"><span style="background-color: rgb(255, 255, 255);"> # Perform reply_route specific processing here</span></div>
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</span><span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">change_reply_status(181, "test</span><span style="background-color: rgb(255, 255, 255);">”</span><span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">);</span></div>
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</span><span style="font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> route(reply_processing_2);</span></div>
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<span style="background-color: rgb(255, 255, 255);"> }</span></div>
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<span style="color: black;">Ben Newlin</span></p>
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<b>From: </b>Users <users-bounces@lists.opensips.org> on behalf of Malte <spce@lard.at><br>
<b>Date: </b>Friday, April 10, 2026 at 5:33 AM<br>
<b>To: </b>users@lists.opensips.org <users@lists.opensips.org><br>
<b>Subject: </b>Re: [OpenSIPS-Users] Nested reply_routes</div>
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<p class="ms-outlook-mobile-reference-message skipProofing">Hi,</p>
<p class="ms-outlook-mobile-reference-message skipProofing">this approach unfortunately doesn't work. Does somebody else know of a solution to neaten up big reply routes?</p>
<p class="ms-outlook-mobile-reference-message skipProofing">My code and the following error:</p>
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<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 367 route[test] {</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 368 xlog("now in test route");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 369 change_reply_status(181, "test");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 370 }</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 371</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 372 onreply_route[MAIN] {</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 373 # For fr_inv_timeout handling</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 374 if (t_check_status("180")) {</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 375 $var(180_in_trans)=1;</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 376 route(test);</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 377 xlog("back to reply route");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 378 }</span><br>
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<span style="background-color: rgb(255, 255, 255);"><b>CRITICAL:core:yyerror: parse error in /etc/opensips/opensips.cfg:369:29-30: Command <change_reply_status> cannot be used in the block</b></span></div>
<p class="ms-outlook-mobile-reference-message skipProofing">Doing it in a reply route:</p>
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<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 367 onreply_route[test] {</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 368 xlog("now in test route");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 369 change_reply_status(181, "test");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 370 }</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 371</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 372 onreply_route[MAIN] {</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 373 # For fr_inv_timeout handling</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 374 if (t_check_status("180")) {</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 375 $var(180_in_trans)=1;</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 376 t_on_reply("test");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 377 xlog("back to MAIN reply route");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 378 }</span><br>
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<span style="background-color: rgb(255, 255, 255);"><b>ERROR:sipmsgops:change_reply_status_f: the class of provisional or positive final replies cannot be changed</b></span></div>
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<p class="ms-outlook-mobile-reference-message skipProofing">Jump to secondary reply route via proxy route:</p>
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<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 367 route[test] {</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 368 xlog("now in test route");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 369 t_on_reply("test");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 370 }</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 371</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 372 onreply_route[test] {</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 373 xlog("now in test reply route");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 374 change_reply_status(181, "test");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 375 }</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 376</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 377 onreply_route[MAIN] {</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 378 # For fr_inv_timeout handling</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 379 if (t_check_status("180")) {</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 380 $var(180_in_trans)=1;</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 381 route(test);</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 382 xlog("back to MAIN reply route");</span><br>
<span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> 383 }</span><br>
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<span style="background-color: rgb(255, 255, 255);"><b>ERROR:sipmsgops:change_reply_status_f: the class of provisional or positive final replies cannot be changed</b></span></div>
<p class="ms-outlook-mobile-reference-message skipProofing">I must note that change_reply_status works flawlessly when executing directly in MAIN reply route.</p>
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<p class="ms-outlook-mobile-reference-message skipProofing">Thanks,</p>
<p class="ms-outlook-mobile-reference-message skipProofing">Malte<span style="font-family: monospace;">
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