diff --git a/openbsc/src/gprs/gprs_gmm.c b/openbsc/src/gprs/gprs_gmm.c
index 7fd8641..a49900e 100644
--- a/openbsc/src/gprs/gprs_gmm.c
+++ b/openbsc/src/gprs/gprs_gmm.c
@@ -208,7 +208,7 @@
 static void mmctx_timer_start(struct sgsn_mm_ctx *mm, unsigned int T,
 				unsigned int seconds)
 {
-	if (bsc_timer_pending(&mm->timer))
+	if (osmo_timer_pending(&mm->timer))
 		LOGP(DMM, LOGL_ERROR, "Starting MM timer %u while old "
 			"timer %u pending\n", T, mm->T);
 	mm->T = T;
@@ -218,7 +218,7 @@
 	mm->timer.data = mm;
 	mm->timer.cb = &mmctx_timer_cb;
 
-	bsc_schedule_timer(&mm->timer, seconds, 0);
+	osmo_timer_schedule(&mm->timer, seconds, 0);
 }
 
 static void mmctx_timer_stop(struct sgsn_mm_ctx *mm, unsigned int T)
@@ -226,7 +226,7 @@
 	if (mm->T != T)
 		LOGP(DMM, LOGL_ERROR, "Stopping MM timer %u but "
 			"%u is running\n", T, mm->T);
-	bsc_del_timer(&mm->timer);
+	osmo_timer_del(&mm->timer);
 }
 
 /* Send a message through the underlying layer */
@@ -1087,7 +1087,7 @@
 			/* FIXME */
 			break;
 		}
-		bsc_schedule_timer(&mm->timer, GSM0408_T3350_SECS, 0);
+		osmo_timer_schedule(&mm->timer, GSM0408_T3350_SECS, 0);
 		break;
 	case 3360:	/* waiting for AUTH AND CIPH RESP */
 		if (mm->num_T_exp >= 5) {
@@ -1096,7 +1096,7 @@
 			break;
 		}
 		/* FIXME: re-transmit the respective msg and re-start timer */
-		bsc_schedule_timer(&mm->timer, GSM0408_T3360_SECS, 0);
+		osmo_timer_schedule(&mm->timer, GSM0408_T3360_SECS, 0);
 		break;
 	case 3370:	/* waiting for IDENTITY RESPONSE */
 		if (mm->num_T_exp >= 5) {
@@ -1107,7 +1107,7 @@
 		}
 		/* re-tranmit IDENTITY REQUEST and re-start timer */
 		gsm48_tx_gmm_id_req(mm, mm->t3370_id_type);
-		bsc_schedule_timer(&mm->timer, GSM0408_T3370_SECS, 0);
+		osmo_timer_schedule(&mm->timer, GSM0408_T3370_SECS, 0);
 		break;
 	default:
 		LOGP(DMM, LOGL_ERROR, "timer expired in unknown mode %u\n",
@@ -1122,7 +1122,7 @@
 static void pdpctx_timer_start(struct sgsn_pdp_ctx *pdp, unsigned int T,
 				unsigned int seconds)
 {
-	if (bsc_timer_pending(&pdp->timer))
+	if (osmo_timer_pending(&pdp->timer))
 		LOGP(DMM, LOGL_ERROR, "Starting MM timer %u while old "
 			"timer %u pending\n", T, pdp->T);
 	pdp->T = T;
@@ -1132,7 +1132,7 @@
 	pdp->timer.data = pdp;
 	pdp->timer.cb = &pdpctx_timer_cb;
 
-	bsc_schedule_timer(&pdp->timer, seconds, 0);
+	osmo_timer_schedule(&pdp->timer, seconds, 0);
 }
 
 
@@ -1457,7 +1457,7 @@
 			break;
 		}
 		gsm48_tx_gsm_deact_pdp_req(pdp, GSM_CAUSE_NET_FAIL); 
-		bsc_schedule_timer(&pdp->timer, GSM0408_T3395_SECS, 0);
+		osmo_timer_schedule(&pdp->timer, GSM0408_T3395_SECS, 0);
 		break;
 	default:
 		LOGP(DMM, LOGL_ERROR, "timer expired in unknown mode %u\n",